Home / 43,397.96-65,121.52-17,121.15

Finding the Fourth Proportional to 43,397.96, 65,121.52 and 17,121.15

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Solution

The fourth proportional to 43,397.96, 65,121.52 and 17,121.15 is: 25,691.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,397.96 : 65,121.52 = 17,121.15 : x
  2. Step 2: Convert to fraction form
    43,397.96/65,121.52 = 17,121.15/x
  3. Step 3: Cross multiply
    43,397.96x = 65,121.52 × 17,121.15
  4. Step 4: Simplify right side
    43,397.96x = 1,114,955,269.35
  5. Step 5: Solve for x
    x = 1,114,955,269.35/43,397.96
  6. Step 6: Final answer
    x = 25,691.42

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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.