Home / 18,874.14-28,270.92-14,381.88

Finding the Fourth Proportional to 18,874.14, 28,270.92 and 14,381.88

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Solution

The fourth proportional to 18,874.14, 28,270.92 and 14,381.88 is: 21,542.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,874.14 : 28,270.92 = 14,381.88 : x
  2. Step 2: Convert to fraction form
    18,874.14/28,270.92 = 14,381.88/x
  3. Step 3: Cross multiply
    18,874.14x = 28,270.92 × 14,381.88
  4. Step 4: Simplify right side
    18,874.14x = 406,588,978.93
  5. Step 5: Solve for x
    x = 406,588,978.93/18,874.14
  6. Step 6: Final answer
    x = 21,542.12

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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.