Home / 20,167.53-30,232.85-8,481.57

Finding the Fourth Proportional to 20,167.53, 30,232.85 and 8,481.57

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Solution

The fourth proportional to 20,167.53, 30,232.85 and 8,481.57 is: 12,714.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,167.53 : 30,232.85 = 8,481.57 : x
  2. Step 2: Convert to fraction form
    20,167.53/30,232.85 = 8,481.57/x
  3. Step 3: Cross multiply
    20,167.53x = 30,232.85 × 8,481.57
  4. Step 4: Simplify right side
    20,167.53x = 256,421,991.17
  5. Step 5: Solve for x
    x = 256,421,991.17/20,167.53
  6. Step 6: Final answer
    x = 12,714.60

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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.