Home / 20,070.42-30,105.63-8,377.26

Finding the Fourth Proportional to 20,070.42, 30,105.63 and 8,377.26

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Solution

The fourth proportional to 20,070.42, 30,105.63 and 8,377.26 is: 12,565.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,070.42 : 30,105.63 = 8,377.26 : x
  2. Step 2: Convert to fraction form
    20,070.42/30,105.63 = 8,377.26/x
  3. Step 3: Cross multiply
    20,070.42x = 30,105.63 × 8,377.26
  4. Step 4: Simplify right side
    20,070.42x = 252,202,689.97
  5. Step 5: Solve for x
    x = 252,202,689.97/20,070.42
  6. Step 6: Final answer
    x = 12,565.89

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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.