Home / 47,939.30-71,883.61-21,273.70

Finding the Fourth Proportional to 47,939.30, 71,883.61 and 21,273.70

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Solution

The fourth proportional to 47,939.30, 71,883.61 and 21,273.70 is: 31,899.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    47,939.30 : 71,883.61 = 21,273.70 : x
  2. Step 2: Convert to fraction form
    47,939.30/71,883.61 = 21,273.70/x
  3. Step 3: Cross multiply
    47,939.30x = 71,883.61 × 21,273.70
  4. Step 4: Simplify right side
    47,939.30x = 1,529,230,506.61
  5. Step 5: Solve for x
    x = 1,529,230,506.61/47,939.30
  6. Step 6: Final answer
    x = 31,899.31

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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.