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Finding the Third Proportional to 20,477 and 43,017

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Solution

The third proportional to 20,477 and 43,017 is: 90,367.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,477 : 43,017 = 43,017 : x
  2. Step 2: Convert to fraction form
    20,477/43,017 = 43,017/x
  3. Step 3: Cross multiply
    20,477x = 43,017 × 43,017
  4. Step 4: Simplify right side
    20,477x = 1,850,462,289
  5. Step 5: Solve for x
    x = 1,850,462,289/20,477
  6. Step 6: Final answer
    x = 90,367.84

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Why These Related Problems?

These problems maintain the same ratio (2.10) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.