Home / 25,379.91-35,022.45-15,170.85

Finding the Fourth Proportional to 25,379.91, 35,022.45 and 15,170.85

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Solution

The fourth proportional to 25,379.91, 35,022.45 and 15,170.85 is: 20,934.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,379.91 : 35,022.45 = 15,170.85 : x
  2. Step 2: Convert to fraction form
    25,379.91/35,022.45 = 15,170.85/x
  3. Step 3: Cross multiply
    25,379.91x = 35,022.45 × 15,170.85
  4. Step 4: Simplify right side
    25,379.91x = 531,320,335.58
  5. Step 5: Solve for x
    x = 531,320,335.58/25,379.91
  6. Step 6: Final answer
    x = 20,934.68

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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.