Home / 20,839.61-28,754.08-12,337.52

Finding the Fourth Proportional to 20,839.61, 28,754.08 and 12,337.52

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Solution

The fourth proportional to 20,839.61, 28,754.08 and 12,337.52 is: 17,023.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,839.61 : 28,754.08 = 12,337.52 : x
  2. Step 2: Convert to fraction form
    20,839.61/28,754.08 = 12,337.52/x
  3. Step 3: Cross multiply
    20,839.61x = 28,754.08 × 12,337.52
  4. Step 4: Simplify right side
    20,839.61x = 354,753,862.47
  5. Step 5: Solve for x
    x = 354,753,862.47/20,839.61
  6. Step 6: Final answer
    x = 17,023.05

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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.