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Finding the Fourth Proportional to 20,488.66, 30,733.60 and 8,008.18

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Solution

The fourth proportional to 20,488.66, 30,733.60 and 8,008.18 is: 12,012.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,488.66 : 30,733.60 = 8,008.18 : x
  2. Step 2: Convert to fraction form
    20,488.66/30,733.60 = 8,008.18/x
  3. Step 3: Cross multiply
    20,488.66x = 30,733.60 × 8,008.18
  4. Step 4: Simplify right side
    20,488.66x = 246,120,200.85
  5. Step 5: Solve for x
    x = 246,120,200.85/20,488.66
  6. Step 6: Final answer
    x = 12,012.51

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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.