Home / 47,958.92-71,938.38-20,257.16

Finding the Fourth Proportional to 47,958.92, 71,938.38 and 20,257.16

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Solution

The fourth proportional to 47,958.92, 71,938.38 and 20,257.16 is: 30,385.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    47,958.92 : 71,938.38 = 20,257.16 : x
  2. Step 2: Convert to fraction form
    47,958.92/71,938.38 = 20,257.16/x
  3. Step 3: Cross multiply
    47,958.92x = 71,938.38 × 20,257.16
  4. Step 4: Simplify right side
    47,958.92x = 1,457,267,273.80
  5. Step 5: Solve for x
    x = 1,457,267,273.80/47,958.92
  6. Step 6: Final answer
    x = 30,385.74

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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.