Home / 38,780.66-58,180.10-12,484.41

Finding the Fourth Proportional to 38,780.66, 58,180.10 and 12,484.41

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Solution

The fourth proportional to 38,780.66, 58,180.10 and 12,484.41 is: 18,729.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,780.66 : 58,180.10 = 12,484.41 : x
  2. Step 2: Convert to fraction form
    38,780.66/58,180.10 = 12,484.41/x
  3. Step 3: Cross multiply
    38,780.66x = 58,180.10 × 12,484.41
  4. Step 4: Simplify right side
    38,780.66x = 726,344,159.82
  5. Step 5: Solve for x
    x = 726,344,159.82/38,780.66
  6. Step 6: Final answer
    x = 18,729.55

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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.