The force exerted by the wind on a place surface varies jointly with the area of the surface and the square...?

The force exerted by the wind on a place surface varies jointly with the area of the surface and the square of the velocity of the wind. If the force on an area of 20 square feet is 11 pounds when the wind velocity is 22 miles per hour, find the force on a surface area of 47.125 square feet when the wind velocity is 36.5 miles per hour.