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Finding the Fourth Proportional to 43,689.25, 65,517.22 and 15,604.06

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Solution

The fourth proportional to 43,689.25, 65,517.22 and 15,604.06 is: 23,400.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,689.25 : 65,517.22 = 15,604.06 : x
  2. Step 2: Convert to fraction form
    43,689.25/65,517.22 = 15,604.06/x
  3. Step 3: Cross multiply
    43,689.25x = 65,517.22 × 15,604.06
  4. Step 4: Simplify right side
    43,689.25x = 1,022,334,631.91
  5. Step 5: Solve for x
    x = 1,022,334,631.91/43,689.25
  6. Step 6: Final answer
    x = 23,400.14

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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.