Home / 33,102.68-45,691.90-20,359.76

Finding the Fourth Proportional to 33,102.68, 45,691.90 and 20,359.76

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Solution

The fourth proportional to 33,102.68, 45,691.90 and 20,359.76 is: 28,102.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    33,102.68 : 45,691.90 = 20,359.76 : x
  2. Step 2: Convert to fraction form
    33,102.68/45,691.90 = 20,359.76/x
  3. Step 3: Cross multiply
    33,102.68x = 45,691.90 × 20,359.76
  4. Step 4: Simplify right side
    33,102.68x = 930,275,838.59
  5. Step 5: Solve for x
    x = 930,275,838.59/33,102.68
  6. Step 6: Final answer
    x = 28,102.74

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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.