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Finding the Fourth Proportional to 40,392.28, 55,743.18 and 23,397.28

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Solution

The fourth proportional to 40,392.28, 55,743.18 and 23,397.28 is: 32,289.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,392.28 : 55,743.18 = 23,397.28 : x
  2. Step 2: Convert to fraction form
    40,392.28/55,743.18 = 23,397.28/x
  3. Step 3: Cross multiply
    40,392.28x = 55,743.18 × 23,397.28
  4. Step 4: Simplify right side
    40,392.28x = 1,304,238,790.55
  5. Step 5: Solve for x
    x = 1,304,238,790.55/40,392.28
  6. Step 6: Final answer
    x = 32,289.31

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.