Home / 48,387.43-72,609.17-20,305

Finding the Fourth Proportional to 48,387.43, 72,609.17 and 20,305

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Solution

The fourth proportional to 48,387.43, 72,609.17 and 20,305 is: 30,469.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    48,387.43 : 72,609.17 = 20,305 : x
  2. Step 2: Convert to fraction form
    48,387.43/72,609.17 = 20,305/x
  3. Step 3: Cross multiply
    48,387.43x = 72,609.17 × 20,305
  4. Step 4: Simplify right side
    48,387.43x = 1,474,329,196.85
  5. Step 5: Solve for x
    x = 1,474,329,196.85/48,387.43
  6. Step 6: Final answer
    x = 30,469.26

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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.