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Finding the Fourth Proportional to 20,132.70, 30,101.85 and 14,883.90

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Solution

The fourth proportional to 20,132.70, 30,101.85 and 14,883.90 is: 22,253.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,132.70 : 30,101.85 = 14,883.90 : x
  2. Step 2: Convert to fraction form
    20,132.70/30,101.85 = 14,883.90/x
  3. Step 3: Cross multiply
    20,132.70x = 30,101.85 × 14,883.90
  4. Step 4: Simplify right side
    20,132.70x = 448,032,925.22
  5. Step 5: Solve for x
    x = 448,032,925.22/20,132.70
  6. Step 6: Final answer
    x = 22,253.99

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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.