Home / 31,824.80-43,947.77-20,520.74

Finding the Fourth Proportional to 31,824.80, 43,947.77 and 20,520.74

Calculator

Solution

The fourth proportional to 31,824.80, 43,947.77 and 20,520.74 is: 28,337.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,824.80 : 43,947.77 = 20,520.74 : x
  2. Step 2: Convert to fraction form
    31,824.80/43,947.77 = 20,520.74/x
  3. Step 3: Cross multiply
    31,824.80x = 43,947.77 × 20,520.74
  4. Step 4: Simplify right side
    31,824.80x = 901,840,769.02
  5. Step 5: Solve for x
    x = 901,840,769.02/31,824.80
  6. Step 6: Final answer
    x = 28,337.67

Related Problems

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.