Home / 39,947.39-55,127.56-22,042.92

Finding the Fourth Proportional to 39,947.39, 55,127.56 and 22,042.92

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Solution

The fourth proportional to 39,947.39, 55,127.56 and 22,042.92 is: 30,419.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,947.39 : 55,127.56 = 22,042.92 : x
  2. Step 2: Convert to fraction form
    39,947.39/55,127.56 = 22,042.92/x
  3. Step 3: Cross multiply
    39,947.39x = 55,127.56 × 22,042.92
  4. Step 4: Simplify right side
    39,947.39x = 1,215,172,394.88
  5. Step 5: Solve for x
    x = 1,215,172,394.88/39,947.39
  6. Step 6: Final answer
    x = 30,419.32

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Double scale
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Similar ratio
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1.5x scale

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.