Home / 20,340.97-30,516.33-8,488.15

Finding the Fourth Proportional to 20,340.97, 30,516.33 and 8,488.15

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Solution

The fourth proportional to 20,340.97, 30,516.33 and 8,488.15 is: 12,734.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,340.97 : 30,516.33 = 8,488.15 : x
  2. Step 2: Convert to fraction form
    20,340.97/30,516.33 = 8,488.15/x
  3. Step 3: Cross multiply
    20,340.97x = 30,516.33 × 8,488.15
  4. Step 4: Simplify right side
    20,340.97x = 259,027,333.95
  5. Step 5: Solve for x
    x = 259,027,333.95/20,340.97
  6. Step 6: Final answer
    x = 12,734.26

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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.