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Finding the Fourth Proportional to 40,331, 55,656.78 and 22,667

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Solution

The fourth proportional to 40,331, 55,656.78 and 22,667 is: 31,280.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,331 : 55,656.78 = 22,667 : x
  2. Step 2: Convert to fraction form
    40,331/55,656.78 = 22,667/x
  3. Step 3: Cross multiply
    40,331x = 55,656.78 × 22,667
  4. Step 4: Simplify right side
    40,331x = 1,261,572,232.26
  5. Step 5: Solve for x
    x = 1,261,572,232.26/40,331
  6. Step 6: Final answer
    x = 31,280.46

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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.