Home / 23,169.80-31,979.06-13,098.66

Finding the Fourth Proportional to 23,169.80, 31,979.06 and 13,098.66

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Solution

The fourth proportional to 23,169.80, 31,979.06 and 13,098.66 is: 18,078.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    23,169.80 : 31,979.06 = 13,098.66 : x
  2. Step 2: Convert to fraction form
    23,169.80/31,979.06 = 13,098.66/x
  3. Step 3: Cross multiply
    23,169.80x = 31,979.06 × 13,098.66
  4. Step 4: Simplify right side
    23,169.80x = 418,882,768.57
  5. Step 5: Solve for x
    x = 418,882,768.57/23,169.80
  6. Step 6: Final answer
    x = 18,078.83

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.