Home / 20,589.19-28,414.48-12,525.97

Finding the Fourth Proportional to 20,589.19, 28,414.48 and 12,525.97

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Solution

The fourth proportional to 20,589.19, 28,414.48 and 12,525.97 is: 17,286.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,589.19 : 28,414.48 = 12,525.97 : x
  2. Step 2: Convert to fraction form
    20,589.19/28,414.48 = 12,525.97/x
  3. Step 3: Cross multiply
    20,589.19x = 28,414.48 × 12,525.97
  4. Step 4: Simplify right side
    20,589.19x = 355,918,781.97
  5. Step 5: Solve for x
    x = 355,918,781.97/20,589.19
  6. Step 6: Final answer
    x = 17,286.69

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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.