Home / 20,086.20-30,129.30-16,198.20

Finding the Fourth Proportional to 20,086.20, 30,129.30 and 16,198.20

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Solution

The fourth proportional to 20,086.20, 30,129.30 and 16,198.20 is: 24,297.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,086.20 : 30,129.30 = 16,198.20 : x
  2. Step 2: Convert to fraction form
    20,086.20/30,129.30 = 16,198.20/x
  3. Step 3: Cross multiply
    20,086.20x = 30,129.30 × 16,198.20
  4. Step 4: Simplify right side
    20,086.20x = 488,040,427.26
  5. Step 5: Solve for x
    x = 488,040,427.26/20,086.20
  6. Step 6: Final answer
    x = 24,297.30

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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.