Home / 20,487.43-30,727.55-5,697.50

Finding the Fourth Proportional to 20,487.43, 30,727.55 and 5,697.50

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Solution

The fourth proportional to 20,487.43, 30,727.55 and 5,697.50 is: 8,545.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,487.43 : 30,727.55 = 5,697.50 : x
  2. Step 2: Convert to fraction form
    20,487.43/30,727.55 = 5,697.50/x
  3. Step 3: Cross multiply
    20,487.43x = 30,727.55 × 5,697.50
  4. Step 4: Simplify right side
    20,487.43x = 175,070,216.13
  5. Step 5: Solve for x
    x = 175,070,216.13/20,487.43
  6. Step 6: Final answer
    x = 8,545.25

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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.