printing 24x36

[Rina]

I have to provide this image to a client to print at 24x36 and I'm wondering if it will print well.  I've been told by the person that the file is too small and they want it larger.  It is 4.02 MB and the dimensions are 2775 x 3785.  I've read every article I can on this and I'm still confused as to whether this file will be large enough.  I read somewhere that I should upsize it to 7200x10800 but then won't the quality be diminished?  I would appreciate any advice you can offer.  thank you.

 

[Christina Keddie]

2775x3785 is 10.5MP (million pixels), so as long as the focus is good and the image quality is high, you can safely resize this photo as large as you'd need. 

Here's an explanation of the math: http://www.damiensymonds.net/2014/03/how-aggressively-can-i-crop.html