Home / 20,522.25-30,786.66-8,676.15

Finding the Fourth Proportional to 20,522.25, 30,786.66 and 8,676.15

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Solution

The fourth proportional to 20,522.25, 30,786.66 and 8,676.15 is: 13,015.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,522.25 : 30,786.66 = 8,676.15 : x
  2. Step 2: Convert to fraction form
    20,522.25/30,786.66 = 8,676.15/x
  3. Step 3: Cross multiply
    20,522.25x = 30,786.66 × 8,676.15
  4. Step 4: Simplify right side
    20,522.25x = 267,109,680.16
  5. Step 5: Solve for x
    x = 267,109,680.16/20,522.25
  6. Step 6: Final answer
    x = 13,015.61

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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.