Home / 20,062.90-30,105.15-8,377.30

Finding the Fourth Proportional to 20,062.90, 30,105.15 and 8,377.30

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Solution

The fourth proportional to 20,062.90, 30,105.15 and 8,377.30 is: 12,570.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,062.90 : 30,105.15 = 8,377.30 : x
  2. Step 2: Convert to fraction form
    20,062.90/30,105.15 = 8,377.30/x
  3. Step 3: Cross multiply
    20,062.90x = 30,105.15 × 8,377.30
  4. Step 4: Simplify right side
    20,062.90x = 252,199,873.10
  5. Step 5: Solve for x
    x = 252,199,873.10/20,062.90
  6. Step 6: Final answer
    x = 12,570.46

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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.