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Finding the Third Proportional to 18,603 and 40,977

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Solution

The third proportional to 18,603 and 40,977 is: 90,260.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,603 : 40,977 = 40,977 : x
  2. Step 2: Convert to fraction form
    18,603/40,977 = 40,977/x
  3. Step 3: Cross multiply
    18,603x = 40,977 × 40,977
  4. Step 4: Simplify right side
    18,603x = 1,679,114,529
  5. Step 5: Solve for x
    x = 1,679,114,529/18,603
  6. Step 6: Final answer
    x = 90,260.42

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Why These Related Problems?

These problems maintain the same ratio (2.20) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.