Home / 21,520.92-32,280.76-6,736.80

Finding the Fourth Proportional to 21,520.92, 32,280.76 and 6,736.80

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Solution

The fourth proportional to 21,520.92, 32,280.76 and 6,736.80 is: 10,105.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,520.92 : 32,280.76 = 6,736.80 : x
  2. Step 2: Convert to fraction form
    21,520.92/32,280.76 = 6,736.80/x
  3. Step 3: Cross multiply
    21,520.92x = 32,280.76 × 6,736.80
  4. Step 4: Simplify right side
    21,520.92x = 217,469,023.97
  5. Step 5: Solve for x
    x = 217,469,023.97/21,520.92
  6. Step 6: Final answer
    x = 10,105.01

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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.