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Finding the Fourth Proportional to 22,561.92, 33,851.52 and 8,720.64

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Solution

The fourth proportional to 22,561.92, 33,851.52 and 8,720.64 is: 13,084.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,561.92 : 33,851.52 = 8,720.64 : x
  2. Step 2: Convert to fraction form
    22,561.92/33,851.52 = 8,720.64/x
  3. Step 3: Cross multiply
    22,561.92x = 33,851.52 × 8,720.64
  4. Step 4: Simplify right side
    22,561.92x = 295,206,919.37
  5. Step 5: Solve for x
    x = 295,206,919.37/22,561.92
  6. Step 6: Final answer
    x = 13,084.30

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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.