Home / 20,713.32-28,572.28-14,656.76

Finding the Fourth Proportional to 20,713.32, 28,572.28 and 14,656.76

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Solution

The fourth proportional to 20,713.32, 28,572.28 and 14,656.76 is: 20,217.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,713.32 : 28,572.28 = 14,656.76 : x
  2. Step 2: Convert to fraction form
    20,713.32/28,572.28 = 14,656.76/x
  3. Step 3: Cross multiply
    20,713.32x = 28,572.28 × 14,656.76
  4. Step 4: Simplify right side
    20,713.32x = 418,777,050.61
  5. Step 5: Solve for x
    x = 418,777,050.61/20,713.32
  6. Step 6: Final answer
    x = 20,217.77

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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.