Home / 47,876.92-71,820.30-18,319.62

Finding the Fourth Proportional to 47,876.92, 71,820.30 and 18,319.62

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Solution

The fourth proportional to 47,876.92, 71,820.30 and 18,319.62 is: 27,481.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    47,876.92 : 71,820.30 = 18,319.62 : x
  2. Step 2: Convert to fraction form
    47,876.92/71,820.30 = 18,319.62/x
  3. Step 3: Cross multiply
    47,876.92x = 71,820.30 × 18,319.62
  4. Step 4: Simplify right side
    47,876.92x = 1,315,720,424.74
  5. Step 5: Solve for x
    x = 1,315,720,424.74/47,876.92
  6. Step 6: Final answer
    x = 27,481.31

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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.