Home / 38,836.71-58,254.66-12,540.87

Finding the Fourth Proportional to 38,836.71, 58,254.66 and 12,540.87

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Solution

The fourth proportional to 38,836.71, 58,254.66 and 12,540.87 is: 18,811.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,836.71 : 58,254.66 = 12,540.87 : x
  2. Step 2: Convert to fraction form
    38,836.71/58,254.66 = 12,540.87/x
  3. Step 3: Cross multiply
    38,836.71x = 58,254.66 × 12,540.87
  4. Step 4: Simplify right side
    38,836.71x = 730,564,117.95
  5. Step 5: Solve for x
    x = 730,564,117.95/38,836.71
  6. Step 6: Final answer
    x = 18,811.17

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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.