Home / 20,158.20-30,200.85-16,440.30

Finding the Fourth Proportional to 20,158.20, 30,200.85 and 16,440.30

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Solution

The fourth proportional to 20,158.20, 30,200.85 and 16,440.30 is: 24,630.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,158.20 : 30,200.85 = 16,440.30 : x
  2. Step 2: Convert to fraction form
    20,158.20/30,200.85 = 16,440.30/x
  3. Step 3: Cross multiply
    20,158.20x = 30,200.85 × 16,440.30
  4. Step 4: Simplify right side
    20,158.20x = 496,511,034.26
  5. Step 5: Solve for x
    x = 496,511,034.26/20,158.20
  6. Step 6: Final answer
    x = 24,630.72

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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.