Home / 39,377.97-54,342.72-21,473.31

Finding the Fourth Proportional to 39,377.97, 54,342.72 and 21,473.31

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Solution

The fourth proportional to 39,377.97, 54,342.72 and 21,473.31 is: 29,633.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,377.97 : 54,342.72 = 21,473.31 : x
  2. Step 2: Convert to fraction form
    39,377.97/54,342.72 = 21,473.31/x
  3. Step 3: Cross multiply
    39,377.97x = 54,342.72 × 21,473.31
  4. Step 4: Simplify right side
    39,377.97x = 1,166,918,072.80
  5. Step 5: Solve for x
    x = 1,166,918,072.80/39,377.97
  6. Step 6: Final answer
    x = 29,633.78

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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.