Home / 47,382.06-71,010.12-20,687.70

Finding the Fourth Proportional to 47,382.06, 71,010.12 and 20,687.70

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Solution

The fourth proportional to 47,382.06, 71,010.12 and 20,687.70 is: 31,004.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    47,382.06 : 71,010.12 = 20,687.70 : x
  2. Step 2: Convert to fraction form
    47,382.06/71,010.12 = 20,687.70/x
  3. Step 3: Cross multiply
    47,382.06x = 71,010.12 × 20,687.70
  4. Step 4: Simplify right side
    47,382.06x = 1,469,036,059.52
  5. Step 5: Solve for x
    x = 1,469,036,059.52/47,382.06
  6. Step 6: Final answer
    x = 31,004.06

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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.