Home / 20,189.22-30,380.13-16,657.04

Finding the Fourth Proportional to 20,189.22, 30,380.13 and 16,657.04

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Solution

The fourth proportional to 20,189.22, 30,380.13 and 16,657.04 is: 25,065.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,189.22 : 30,380.13 = 16,657.04 : x
  2. Step 2: Convert to fraction form
    20,189.22/30,380.13 = 16,657.04/x
  3. Step 3: Cross multiply
    20,189.22x = 30,380.13 × 16,657.04
  4. Step 4: Simplify right side
    20,189.22x = 506,043,116.57
  5. Step 5: Solve for x
    x = 506,043,116.57/20,189.22
  6. Step 6: Final answer
    x = 25,065.02

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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.