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Finding the Third Proportional to 9,405 and 20,295

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Solution

The third proportional to 9,405 and 20,295 is: 43,794.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,405 : 20,295 = 20,295 : x
  2. Step 2: Convert to fraction form
    9,405/20,295 = 20,295/x
  3. Step 3: Cross multiply
    9,405x = 20,295 × 20,295
  4. Step 4: Simplify right side
    9,405x = 411,887,025
  5. Step 5: Solve for x
    x = 411,887,025/9,405
  6. Step 6: Final answer
    x = 43,794.47

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Why These Related Problems?

These problems maintain the same ratio (2.16) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.