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Finding the Fourth Proportional to 33,172.38, 45,745.29 and 28,150.38

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Solution

The fourth proportional to 33,172.38, 45,745.29 and 28,150.38 is: 38,819.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    33,172.38 : 45,745.29 = 28,150.38 : x
  2. Step 2: Convert to fraction form
    33,172.38/45,745.29 = 28,150.38/x
  3. Step 3: Cross multiply
    33,172.38x = 45,745.29 × 28,150.38
  4. Step 4: Simplify right side
    33,172.38x = 1,287,747,296.71
  5. Step 5: Solve for x
    x = 1,287,747,296.71/33,172.38
  6. Step 6: Final answer
    x = 38,819.86

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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.