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Finding the Fourth Proportional to 20,167.00, 30,251.19 and 5,375.95

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Solution

The fourth proportional to 20,167.00, 30,251.19 and 5,375.95 is: 8,064.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,167.00 : 30,251.19 = 5,375.95 : x
  2. Step 2: Convert to fraction form
    20,167.00/30,251.19 = 5,375.95/x
  3. Step 3: Cross multiply
    20,167.00x = 30,251.19 × 5,375.95
  4. Step 4: Simplify right side
    20,167.00x = 162,628,733.62
  5. Step 5: Solve for x
    x = 162,628,733.62/20,167.00
  6. Step 6: Final answer
    x = 8,064.10

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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.