Home / 38,910.66-58,374.52-12,618.06

Finding the Fourth Proportional to 38,910.66, 58,374.52 and 12,618.06

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Solution

The fourth proportional to 38,910.66, 58,374.52 and 12,618.06 is: 18,929.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,910.66 : 58,374.52 = 12,618.06 : x
  2. Step 2: Convert to fraction form
    38,910.66/58,374.52 = 12,618.06/x
  3. Step 3: Cross multiply
    38,910.66x = 58,374.52 × 12,618.06
  4. Step 4: Simplify right side
    38,910.66x = 736,573,195.83
  5. Step 5: Solve for x
    x = 736,573,195.83/38,910.66
  6. Step 6: Final answer
    x = 18,929.86

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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.