Home / 20,553.46-28,363.32-11,600.74

Finding the Fourth Proportional to 20,553.46, 28,363.32 and 11,600.74

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Solution

The fourth proportional to 20,553.46, 28,363.32 and 11,600.74 is: 16,008.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,553.46 : 28,363.32 = 11,600.74 : x
  2. Step 2: Convert to fraction form
    20,553.46/28,363.32 = 11,600.74/x
  3. Step 3: Cross multiply
    20,553.46x = 28,363.32 × 11,600.74
  4. Step 4: Simplify right side
    20,553.46x = 329,035,500.86
  5. Step 5: Solve for x
    x = 329,035,500.86/20,553.46
  6. Step 6: Final answer
    x = 16,008.76

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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.