Home / 20,132.82-30,208.50-9,042.48

Finding the Fourth Proportional to 20,132.82, 30,208.50 and 9,042.48

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Solution

The fourth proportional to 20,132.82, 30,208.50 and 9,042.48 is: 13,567.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,132.82 : 30,208.50 = 9,042.48 : x
  2. Step 2: Convert to fraction form
    20,132.82/30,208.50 = 9,042.48/x
  3. Step 3: Cross multiply
    20,132.82x = 30,208.50 × 9,042.48
  4. Step 4: Simplify right side
    20,132.82x = 273,159,757.08
  5. Step 5: Solve for x
    x = 273,159,757.08/20,132.82
  6. Step 6: Final answer
    x = 13,567.88

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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.