Home / 22,142.97-33,073.35-20,031.36

Finding the Fourth Proportional to 22,142.97, 33,073.35 and 20,031.36

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Solution

The fourth proportional to 22,142.97, 33,073.35 and 20,031.36 is: 29,919.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,142.97 : 33,073.35 = 20,031.36 : x
  2. Step 2: Convert to fraction form
    22,142.97/33,073.35 = 20,031.36/x
  3. Step 3: Cross multiply
    22,142.97x = 33,073.35 × 20,031.36
  4. Step 4: Simplify right side
    22,142.97x = 662,504,180.26
  5. Step 5: Solve for x
    x = 662,504,180.26/22,142.97
  6. Step 6: Final answer
    x = 29,919.39

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Half scale
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Double scale
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.