Home / 21,478.04-32,229.61-8,997

Finding the Fourth Proportional to 21,478.04, 32,229.61 and 8,997

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Solution

The fourth proportional to 21,478.04, 32,229.61 and 8,997 is: 13,500.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,478.04 : 32,229.61 = 8,997 : x
  2. Step 2: Convert to fraction form
    21,478.04/32,229.61 = 8,997/x
  3. Step 3: Cross multiply
    21,478.04x = 32,229.61 × 8,997
  4. Step 4: Simplify right side
    21,478.04x = 289,969,778.68
  5. Step 5: Solve for x
    x = 289,969,778.68/21,478.04
  6. Step 6: Final answer
    x = 13,500.76

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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.