Home / 20,179.61-30,276.22-8,933.40

Finding the Fourth Proportional to 20,179.61, 30,276.22 and 8,933.40

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Solution

The fourth proportional to 20,179.61, 30,276.22 and 8,933.40 is: 13,403.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,179.61 : 30,276.22 = 8,933.40 : x
  2. Step 2: Convert to fraction form
    20,179.61/30,276.22 = 8,933.40/x
  3. Step 3: Cross multiply
    20,179.61x = 30,276.22 × 8,933.40
  4. Step 4: Simplify right side
    20,179.61x = 270,469,454.70
  5. Step 5: Solve for x
    x = 270,469,454.70/20,179.61
  6. Step 6: Final answer
    x = 13,403.11

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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.