Home / 20,132.60-30,201.60-8,443.04

Finding the Fourth Proportional to 20,132.60, 30,201.60 and 8,443.04

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Solution

The fourth proportional to 20,132.60, 30,201.60 and 8,443.04 is: 12,665.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,132.60 : 30,201.60 = 8,443.04 : x
  2. Step 2: Convert to fraction form
    20,132.60/30,201.60 = 8,443.04/x
  3. Step 3: Cross multiply
    20,132.60x = 30,201.60 × 8,443.04
  4. Step 4: Simplify right side
    20,132.60x = 254,993,316.86
  5. Step 5: Solve for x
    x = 254,993,316.86/20,132.60
  6. Step 6: Final answer
    x = 12,665.69

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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.