Home / 31,868.96-43,979.04-17,721.88

Finding the Fourth Proportional to 31,868.96, 43,979.04 and 17,721.88

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Solution

The fourth proportional to 31,868.96, 43,979.04 and 17,721.88 is: 24,456.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,868.96 : 43,979.04 = 17,721.88 : x
  2. Step 2: Convert to fraction form
    31,868.96/43,979.04 = 17,721.88/x
  3. Step 3: Cross multiply
    31,868.96x = 43,979.04 × 17,721.88
  4. Step 4: Simplify right side
    31,868.96x = 779,391,269.40
  5. Step 5: Solve for x
    x = 779,391,269.40/31,868.96
  6. Step 6: Final answer
    x = 24,456.13

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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.