Home / 21,910.20-32,847.30-9,439.80

Finding the Fourth Proportional to 21,910.20, 32,847.30 and 9,439.80

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Solution

The fourth proportional to 21,910.20, 32,847.30 and 9,439.80 is: 14,151.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,910.20 : 32,847.30 = 9,439.80 : x
  2. Step 2: Convert to fraction form
    21,910.20/32,847.30 = 9,439.80/x
  3. Step 3: Cross multiply
    21,910.20x = 32,847.30 × 9,439.80
  4. Step 4: Simplify right side
    21,910.20x = 310,071,942.54
  5. Step 5: Solve for x
    x = 310,071,942.54/21,910.20
  6. Step 6: Final answer
    x = 14,151.94

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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.