Answer:
12
Step-by-step explanation:
Back Knowledge: Being proportional is basically being an equivalent ratio.
#1: Think of the ratio being 3:7 (x,y)
#2: Since y is 28 which is the 7 in the ratio we need to think about how we can get it to 28. -> (7 x 4 = 28)
#3: Now if we do something to one side we need to do it to the other.
Since we multiplied 27 by 4 we need to multiply 3 by 4. :)
All Steps: (3:7) -> (3:28) -> (12:28)
