Home / 18,134.20-27,175.80-14,419.96

Finding the Fourth Proportional to 18,134.20, 27,175.80 and 14,419.96

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Solution

The fourth proportional to 18,134.20, 27,175.80 and 14,419.96 is: 21,609.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,134.20 : 27,175.80 = 14,419.96 : x
  2. Step 2: Convert to fraction form
    18,134.20/27,175.80 = 14,419.96/x
  3. Step 3: Cross multiply
    18,134.20x = 27,175.80 × 14,419.96
  4. Step 4: Simplify right side
    18,134.20x = 391,873,948.97
  5. Step 5: Solve for x
    x = 391,873,948.97/18,134.20
  6. Step 6: Final answer
    x = 21,609.66

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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.