Home / 20,170.62-30,259.18-8,487.18

Finding the Fourth Proportional to 20,170.62, 30,259.18 and 8,487.18

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Solution

The fourth proportional to 20,170.62, 30,259.18 and 8,487.18 is: 12,732.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,170.62 : 30,259.18 = 8,487.18 : x
  2. Step 2: Convert to fraction form
    20,170.62/30,259.18 = 8,487.18/x
  3. Step 3: Cross multiply
    20,170.62x = 30,259.18 × 8,487.18
  4. Step 4: Simplify right side
    20,170.62x = 256,815,107.31
  5. Step 5: Solve for x
    x = 256,815,107.31/20,170.62
  6. Step 6: Final answer
    x = 12,732.14

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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.