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Finding the Fourth Proportional to 21,846.92, 32,731.49 and 9,168.80

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Solution

The fourth proportional to 21,846.92, 32,731.49 and 9,168.80 is: 13,736.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,846.92 : 32,731.49 = 9,168.80 : x
  2. Step 2: Convert to fraction form
    21,846.92/32,731.49 = 9,168.80/x
  3. Step 3: Cross multiply
    21,846.92x = 32,731.49 × 9,168.80
  4. Step 4: Simplify right side
    21,846.92x = 300,108,344.78
  5. Step 5: Solve for x
    x = 300,108,344.78/21,846.92
  6. Step 6: Final answer
    x = 13,736.88

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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.