Home / 20,567.43-28,378.17-12,500.94

Finding the Fourth Proportional to 20,567.43, 28,378.17 and 12,500.94

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Solution

The fourth proportional to 20,567.43, 28,378.17 and 12,500.94 is: 17,248.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,567.43 : 28,378.17 = 12,500.94 : x
  2. Step 2: Convert to fraction form
    20,567.43/28,378.17 = 12,500.94/x
  3. Step 3: Cross multiply
    20,567.43x = 28,378.17 × 12,500.94
  4. Step 4: Simplify right side
    20,567.43x = 354,753,800.48
  5. Step 5: Solve for x
    x = 354,753,800.48/20,567.43
  6. Step 6: Final answer
    x = 17,248.33

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1.5x scale

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.