Home / 38,657.44-57,981.91-18,876.03

Finding the Fourth Proportional to 38,657.44, 57,981.91 and 18,876.03

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Solution

The fourth proportional to 38,657.44, 57,981.91 and 18,876.03 is: 28,311.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,657.44 : 57,981.91 = 18,876.03 : x
  2. Step 2: Convert to fraction form
    38,657.44/57,981.91 = 18,876.03/x
  3. Step 3: Cross multiply
    38,657.44x = 57,981.91 × 18,876.03
  4. Step 4: Simplify right side
    38,657.44x = 1,094,468,272.62
  5. Step 5: Solve for x
    x = 1,094,468,272.62/38,657.44
  6. Step 6: Final answer
    x = 28,311.97

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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.