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Finding the Fourth Proportional to 39,474.99, 54,475.86 and 21,569.99

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Solution

The fourth proportional to 39,474.99, 54,475.86 and 21,569.99 is: 29,766.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,474.99 : 54,475.86 = 21,569.99 : x
  2. Step 2: Convert to fraction form
    39,474.99/54,475.86 = 21,569.99/x
  3. Step 3: Cross multiply
    39,474.99x = 54,475.86 × 21,569.99
  4. Step 4: Simplify right side
    39,474.99x = 1,175,043,755.44
  5. Step 5: Solve for x
    x = 1,175,043,755.44/39,474.99
  6. Step 6: Final answer
    x = 29,766.79

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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.