Home / 43,691.13-65,515.99-15,218.15

Finding the Fourth Proportional to 43,691.13, 65,515.99 and 15,218.15

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Solution

The fourth proportional to 43,691.13, 65,515.99 and 15,218.15 is: 22,820.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,691.13 : 65,515.99 = 15,218.15 : x
  2. Step 2: Convert to fraction form
    43,691.13/65,515.99 = 15,218.15/x
  3. Step 3: Cross multiply
    43,691.13x = 65,515.99 × 15,218.15
  4. Step 4: Simplify right side
    43,691.13x = 997,032,378.92
  5. Step 5: Solve for x
    x = 997,032,378.92/43,691.13
  6. Step 6: Final answer
    x = 22,820.02

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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.