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Finding the Third Proportional to 8,974 and 20,855

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Solution

The third proportional to 8,974 and 20,855 is: 48,465.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,974 : 20,855 = 20,855 : x
  2. Step 2: Convert to fraction form
    8,974/20,855 = 20,855/x
  3. Step 3: Cross multiply
    8,974x = 20,855 × 20,855
  4. Step 4: Simplify right side
    8,974x = 434,931,025
  5. Step 5: Solve for x
    x = 434,931,025/8,974
  6. Step 6: Final answer
    x = 48,465.68

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Why These Related Problems?

These problems maintain the same ratio (2.32) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.