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Finding the Fourth Proportional to 40,350, 55,683 and 22,686

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Solution

The fourth proportional to 40,350, 55,683 and 22,686 is: 31,306.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,350 : 55,683 = 22,686 : x
  2. Step 2: Convert to fraction form
    40,350/55,683 = 22,686/x
  3. Step 3: Cross multiply
    40,350x = 55,683 × 22,686
  4. Step 4: Simplify right side
    40,350x = 1,263,224,538
  5. Step 5: Solve for x
    x = 1,263,224,538/40,350
  6. Step 6: Final answer
    x = 31,306.68

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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.