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Finding the Third Proportional to 15,106 and 20,675

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Solution

The third proportional to 15,106 and 20,675 is: 28,297.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,106 : 20,675 = 20,675 : x
  2. Step 2: Convert to fraction form
    15,106/20,675 = 20,675/x
  3. Step 3: Cross multiply
    15,106x = 20,675 × 20,675
  4. Step 4: Simplify right side
    15,106x = 427,455,625
  5. Step 5: Solve for x
    x = 427,455,625/15,106
  6. Step 6: Final answer
    x = 28,297.08

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Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.