Home / 22,001.20-32,980.20-10,909.60

Finding the Fourth Proportional to 22,001.20, 32,980.20 and 10,909.60

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Solution

The fourth proportional to 22,001.20, 32,980.20 and 10,909.60 is: 16,353.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,001.20 : 32,980.20 = 10,909.60 : x
  2. Step 2: Convert to fraction form
    22,001.20/32,980.20 = 10,909.60/x
  3. Step 3: Cross multiply
    22,001.20x = 32,980.20 × 10,909.60
  4. Step 4: Simplify right side
    22,001.20x = 359,800,789.92
  5. Step 5: Solve for x
    x = 359,800,789.92/22,001.20
  6. Step 6: Final answer
    x = 16,353.69

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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.