Home / 33,231.28-45,862.82-20,481.88

Finding the Fourth Proportional to 33,231.28, 45,862.82 and 20,481.88

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Solution

The fourth proportional to 33,231.28, 45,862.82 and 20,481.88 is: 28,267.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    33,231.28 : 45,862.82 = 20,481.88 : x
  2. Step 2: Convert to fraction form
    33,231.28/45,862.82 = 20,481.88/x
  3. Step 3: Cross multiply
    33,231.28x = 45,862.82 × 20,481.88
  4. Step 4: Simplify right side
    33,231.28x = 939,356,775.70
  5. Step 5: Solve for x
    x = 939,356,775.70/33,231.28
  6. Step 6: Final answer
    x = 28,267.25

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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.