Home / 47,581.20-71,372.94-15,991.72

Finding the Fourth Proportional to 47,581.20, 71,372.94 and 15,991.72

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Solution

The fourth proportional to 47,581.20, 71,372.94 and 15,991.72 is: 23,987.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    47,581.20 : 71,372.94 = 15,991.72 : x
  2. Step 2: Convert to fraction form
    47,581.20/71,372.94 = 15,991.72/x
  3. Step 3: Cross multiply
    47,581.20x = 71,372.94 × 15,991.72
  4. Step 4: Simplify right side
    47,581.20x = 1,141,376,072.06
  5. Step 5: Solve for x
    x = 1,141,376,072.06/47,581.20
  6. Step 6: Final answer
    x = 23,987.96

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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.