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Finding the Fourth Proportional to 39,341, 54,290.58 and 21,677

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Solution

The fourth proportional to 39,341, 54,290.58 and 21,677 is: 29,914.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,341 : 54,290.58 = 21,677 : x
  2. Step 2: Convert to fraction form
    39,341/54,290.58 = 21,677/x
  3. Step 3: Cross multiply
    39,341x = 54,290.58 × 21,677
  4. Step 4: Simplify right side
    39,341x = 1,176,856,902.66
  5. Step 5: Solve for x
    x = 1,176,856,902.66/39,341
  6. Step 6: Final answer
    x = 29,914.26

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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.