Home / 38,982.33-58,474.40-12,689.12

Finding the Fourth Proportional to 38,982.33, 58,474.40 and 12,689.12

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Solution

The fourth proportional to 38,982.33, 58,474.40 and 12,689.12 is: 19,033.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,982.33 : 58,474.40 = 12,689.12 : x
  2. Step 2: Convert to fraction form
    38,982.33/58,474.40 = 12,689.12/x
  3. Step 3: Cross multiply
    38,982.33x = 58,474.40 × 12,689.12
  4. Step 4: Simplify right side
    38,982.33x = 741,988,761.27
  5. Step 5: Solve for x
    x = 741,988,761.27/38,982.33
  6. Step 6: Final answer
    x = 19,033.98

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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.