Home / 38,087.29-57,119.07-12,781.87

Finding the Fourth Proportional to 38,087.29, 57,119.07 and 12,781.87

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Solution

The fourth proportional to 38,087.29, 57,119.07 and 12,781.87 is: 19,168.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,087.29 : 57,119.07 = 12,781.87 : x
  2. Step 2: Convert to fraction form
    38,087.29/57,119.07 = 12,781.87/x
  3. Step 3: Cross multiply
    38,087.29x = 57,119.07 × 12,781.87
  4. Step 4: Simplify right side
    38,087.29x = 730,088,527.26
  5. Step 5: Solve for x
    x = 730,088,527.26/38,087.29
  6. Step 6: Final answer
    x = 19,168.82

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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.