Home / 21,800.25-32,700.68-6,217.88

Finding the Fourth Proportional to 21,800.25, 32,700.68 and 6,217.88

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Solution

The fourth proportional to 21,800.25, 32,700.68 and 6,217.88 is: 9,326.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,800.25 : 32,700.68 = 6,217.88 : x
  2. Step 2: Convert to fraction form
    21,800.25/32,700.68 = 6,217.88/x
  3. Step 3: Cross multiply
    21,800.25x = 32,700.68 × 6,217.88
  4. Step 4: Simplify right side
    21,800.25x = 203,328,756.20
  5. Step 5: Solve for x
    x = 203,328,756.20/21,800.25
  6. Step 6: Final answer
    x = 9,326.90

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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.