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Finding the Third Proportional to 13,650.75 and 20,455.88

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Solution

The third proportional to 13,650.75 and 20,455.88 is: 30,653.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,650.75 : 20,455.88 = 20,455.88 : x
  2. Step 2: Convert to fraction form
    13,650.75/20,455.88 = 20,455.88/x
  3. Step 3: Cross multiply
    13,650.75x = 20,455.88 × 20,455.88
  4. Step 4: Simplify right side
    13,650.75x = 418,442,822.02
  5. Step 5: Solve for x
    x = 418,442,822.02/13,650.75
  6. Step 6: Final answer
    x = 30,653.47

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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.