Plz help me I don’t understand this

Answer:
m(missing number)= 10.8 or rounded is 11
Step-by-step explanation:
For the equation
9 x 20= m x 24
The cross product is
9×24=20×m
Solving for m
m=9×24/20
and reducing
m=10.8
Solution by Proportion
Since the equation is an equality
If
24 ÷ 20 = 1.2
Then it is true that
m ÷ 9 = 1.2
Solving for m
m = 9 × 1.2
m = 10.8
Rounded
11`because its closer to 11 then subtracting the decimal!
hope this helps!! tell me if i have anything wrong:)