How does one get 24 from 16? Answer: Multiply 16 by (3/2). If we want 4/16 = m/24 to be a proportion, then multiply m by (3/2) also:
4 (3/2)m
------ * ----------------
16 24
To answer this question fully, we must solve for m:
Multiply
4 24
---- by --------- , which produces 96/24 = 4/1, or just 4. m = 4.
16 (3/2)