Home / 28,105.92-38,789.76-16,165.44

Finding the Fourth Proportional to 28,105.92, 38,789.76 and 16,165.44

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Solution

The fourth proportional to 28,105.92, 38,789.76 and 16,165.44 is: 22,310.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,105.92 : 38,789.76 = 16,165.44 : x
  2. Step 2: Convert to fraction form
    28,105.92/38,789.76 = 16,165.44/x
  3. Step 3: Cross multiply
    28,105.92x = 38,789.76 × 16,165.44
  4. Step 4: Simplify right side
    28,105.92x = 627,053,537.89
  5. Step 5: Solve for x
    x = 627,053,537.89/28,105.92
  6. Step 6: Final answer
    x = 22,310.37

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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.