Home / 38,781.38-58,185.94-19,073.78

Finding the Fourth Proportional to 38,781.38, 58,185.94 and 19,073.78

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Solution

The fourth proportional to 38,781.38, 58,185.94 and 19,073.78 is: 28,617.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,781.38 : 58,185.94 = 19,073.78 : x
  2. Step 2: Convert to fraction form
    38,781.38/58,185.94 = 19,073.78/x
  3. Step 3: Cross multiply
    38,781.38x = 58,185.94 × 19,073.78
  4. Step 4: Simplify right side
    38,781.38x = 1,109,825,818.65
  5. Step 5: Solve for x
    x = 1,109,825,818.65/38,781.38
  6. Step 6: Final answer
    x = 28,617.49

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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.