Home / 20,668.04-30,983.87-8,196.82

Finding the Fourth Proportional to 20,668.04, 30,983.87 and 8,196.82

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Solution

The fourth proportional to 20,668.04, 30,983.87 and 8,196.82 is: 12,288.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,668.04 : 30,983.87 = 8,196.82 : x
  2. Step 2: Convert to fraction form
    20,668.04/30,983.87 = 8,196.82/x
  3. Step 3: Cross multiply
    20,668.04x = 30,983.87 × 8,196.82
  4. Step 4: Simplify right side
    20,668.04x = 253,969,205.29
  5. Step 5: Solve for x
    x = 253,969,205.29/20,668.04
  6. Step 6: Final answer
    x = 12,288.02

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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.