Home / 28,267.20-42,400.80-17,177.13

Finding the Fourth Proportional to 28,267.20, 42,400.80 and 17,177.13

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Solution

The fourth proportional to 28,267.20, 42,400.80 and 17,177.13 is: 25,765.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,267.20 : 42,400.80 = 17,177.13 : x
  2. Step 2: Convert to fraction form
    28,267.20/42,400.80 = 17,177.13/x
  3. Step 3: Cross multiply
    28,267.20x = 42,400.80 × 17,177.13
  4. Step 4: Simplify right side
    28,267.20x = 728,324,053.70
  5. Step 5: Solve for x
    x = 728,324,053.70/28,267.20
  6. Step 6: Final answer
    x = 25,765.70

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.