Home / 20,149.32-30,193.19-8,456.16

Finding the Fourth Proportional to 20,149.32, 30,193.19 and 8,456.16

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Solution

The fourth proportional to 20,149.32, 30,193.19 and 8,456.16 is: 12,671.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,149.32 : 30,193.19 = 8,456.16 : x
  2. Step 2: Convert to fraction form
    20,149.32/30,193.19 = 8,456.16/x
  3. Step 3: Cross multiply
    20,149.32x = 30,193.19 × 8,456.16
  4. Step 4: Simplify right side
    20,149.32x = 255,318,445.55
  5. Step 5: Solve for x
    x = 255,318,445.55/20,149.32
  6. Step 6: Final answer
    x = 12,671.32

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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.