Home / 20,488.91-30,733.97-8,008.43

Finding the Fourth Proportional to 20,488.91, 30,733.97 and 8,008.43

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Solution

The fourth proportional to 20,488.91, 30,733.97 and 8,008.43 is: 12,012.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,488.91 : 30,733.97 = 8,008.43 : x
  2. Step 2: Convert to fraction form
    20,488.91/30,733.97 = 8,008.43/x
  3. Step 3: Cross multiply
    20,488.91x = 30,733.97 × 8,008.43
  4. Step 4: Simplify right side
    20,488.91x = 246,130,653.66
  5. Step 5: Solve for x
    x = 246,130,653.66/20,488.91
  6. Step 6: Final answer
    x = 12,012.87

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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.