Home / 20,441.25-28,197.38-12,874.57

Finding the Fourth Proportional to 20,441.25, 28,197.38 and 12,874.57

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Solution

The fourth proportional to 20,441.25, 28,197.38 and 12,874.57 is: 17,759.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,441.25 : 28,197.38 = 12,874.57 : x
  2. Step 2: Convert to fraction form
    20,441.25/28,197.38 = 12,874.57/x
  3. Step 3: Cross multiply
    20,441.25x = 28,197.38 × 12,874.57
  4. Step 4: Simplify right side
    20,441.25x = 363,029,104.32
  5. Step 5: Solve for x
    x = 363,029,104.32/20,441.25
  6. Step 6: Final answer
    x = 17,759.63

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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.