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Finding the Third Proportional to 8,954 and 20,158

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Solution

The third proportional to 8,954 and 20,158 is: 45,381.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,954 : 20,158 = 20,158 : x
  2. Step 2: Convert to fraction form
    8,954/20,158 = 20,158/x
  3. Step 3: Cross multiply
    8,954x = 20,158 × 20,158
  4. Step 4: Simplify right side
    8,954x = 406,344,964
  5. Step 5: Solve for x
    x = 406,344,964/8,954
  6. Step 6: Final answer
    x = 45,381.39

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Why These Related Problems?

These problems maintain the same ratio (2.25) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.