Home / 25,520.13-38,280.15-9,937.76

Finding the Fourth Proportional to 25,520.13, 38,280.15 and 9,937.76

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Solution

The fourth proportional to 25,520.13, 38,280.15 and 9,937.76 is: 14,906.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,520.13 : 38,280.15 = 9,937.76 : x
  2. Step 2: Convert to fraction form
    25,520.13/38,280.15 = 9,937.76/x
  3. Step 3: Cross multiply
    25,520.13x = 38,280.15 × 9,937.76
  4. Step 4: Simplify right side
    25,520.13x = 380,418,752.06
  5. Step 5: Solve for x
    x = 380,418,752.06/25,520.13
  6. Step 6: Final answer
    x = 14,906.61

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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.