Home / 20,520.92-30,775.90-5,727.24

Finding the Fourth Proportional to 20,520.92, 30,775.90 and 5,727.24

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Solution

The fourth proportional to 20,520.92, 30,775.90 and 5,727.24 is: 8,589.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,520.92 : 30,775.90 = 5,727.24 : x
  2. Step 2: Convert to fraction form
    20,520.92/30,775.90 = 5,727.24/x
  3. Step 3: Cross multiply
    20,520.92x = 30,775.90 × 5,727.24
  4. Step 4: Simplify right side
    20,520.92x = 176,260,965.52
  5. Step 5: Solve for x
    x = 176,260,965.52/20,520.92
  6. Step 6: Final answer
    x = 8,589.33

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.