Home / 43,129.32-64,693.92-13,549.44

Finding the Fourth Proportional to 43,129.32, 64,693.92 and 13,549.44

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Solution

The fourth proportional to 43,129.32, 64,693.92 and 13,549.44 is: 20,324.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,129.32 : 64,693.92 = 13,549.44 : x
  2. Step 2: Convert to fraction form
    43,129.32/64,693.92 = 13,549.44/x
  3. Step 3: Cross multiply
    43,129.32x = 64,693.92 × 13,549.44
  4. Step 4: Simplify right side
    43,129.32x = 876,566,387.40
  5. Step 5: Solve for x
    x = 876,566,387.40/43,129.32
  6. Step 6: Final answer
    x = 20,324.14

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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.