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Finding the Fourth Proportional to 18,094.20, 27,141.30 and 16,279.80

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Solution

The fourth proportional to 18,094.20, 27,141.30 and 16,279.80 is: 24,419.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,094.20 : 27,141.30 = 16,279.80 : x
  2. Step 2: Convert to fraction form
    18,094.20/27,141.30 = 16,279.80/x
  3. Step 3: Cross multiply
    18,094.20x = 27,141.30 × 16,279.80
  4. Step 4: Simplify right side
    18,094.20x = 441,854,935.74
  5. Step 5: Solve for x
    x = 441,854,935.74/18,094.20
  6. Step 6: Final answer
    x = 24,419.70

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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.