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Finding the Fourth Proportional to 40,486, 55,869.06 and 22,580.86

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Solution

The fourth proportional to 40,486, 55,869.06 and 22,580.86 is: 31,160.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,486 : 55,869.06 = 22,580.86 : x
  2. Step 2: Convert to fraction form
    40,486/55,869.06 = 22,580.86/x
  3. Step 3: Cross multiply
    40,486x = 55,869.06 × 22,580.86
  4. Step 4: Simplify right side
    40,486x = 1,261,571,422.19
  5. Step 5: Solve for x
    x = 1,261,571,422.19/40,486
  6. Step 6: Final answer
    x = 31,160.68

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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.