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Finding the Third Proportional to 13,851.84 and 20,772.28

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Solution

The third proportional to 13,851.84 and 20,772.28 is: 31,150.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,851.84 : 20,772.28 = 20,772.28 : x
  2. Step 2: Convert to fraction form
    13,851.84/20,772.28 = 20,772.28/x
  3. Step 3: Cross multiply
    13,851.84x = 20,772.28 × 20,772.28
  4. Step 4: Simplify right side
    13,851.84x = 431,487,668.33
  5. Step 5: Solve for x
    x = 431,487,668.33/13,851.84
  6. Step 6: Final answer
    x = 31,150.20

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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.