Question

Find the missing number in ?/4 = 27/36​

Answer 1

$\text{First I would recommend replacing the question mark with x}\\\text{We have two ratios, }\\\text{and we need to solve that hard-looking equation}\\\text{in terms of x}$

$\rule{300}{1.7}$

$\text{We can multiply x times 36:: 36x}\\\text{We can multiply 4 times 27:: 108}$

$\rule{300}{1.7}$

$\text{Now it's easier to solve for x:: 36x=108; x=3}\\\text{ (we divided by 36 on both sides of the = sign)}$

$\rule{300}{1.7}$

$\text{The missing number is 3}$