Home / 26,515.18-39,770.70-15,414.78

Finding the Fourth Proportional to 26,515.18, 39,770.70 and 15,414.78

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Solution

The fourth proportional to 26,515.18, 39,770.70 and 15,414.78 is: 23,120.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,515.18 : 39,770.70 = 15,414.78 : x
  2. Step 2: Convert to fraction form
    26,515.18/39,770.70 = 15,414.78/x
  3. Step 3: Cross multiply
    26,515.18x = 39,770.70 × 15,414.78
  4. Step 4: Simplify right side
    26,515.18x = 613,056,590.95
  5. Step 5: Solve for x
    x = 613,056,590.95/26,515.18
  6. Step 6: Final answer
    x = 23,120.97

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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.