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Finding the Third Proportional to 20,145 and 23,289

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Solution

The third proportional to 20,145 and 23,289 is: 26,923.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,145 : 23,289 = 23,289 : x
  2. Step 2: Convert to fraction form
    20,145/23,289 = 23,289/x
  3. Step 3: Cross multiply
    20,145x = 23,289 × 23,289
  4. Step 4: Simplify right side
    20,145x = 542,377,521
  5. Step 5: Solve for x
    x = 542,377,521/20,145
  6. Step 6: Final answer
    x = 26,923.68

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.16) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.