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Finding the Third Proportional to 9,410 and 20,438

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Solution

The third proportional to 9,410 and 20,438 is: 44,390.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,410 : 20,438 = 20,438 : x
  2. Step 2: Convert to fraction form
    9,410/20,438 = 20,438/x
  3. Step 3: Cross multiply
    9,410x = 20,438 × 20,438
  4. Step 4: Simplify right side
    9,410x = 417,711,844
  5. Step 5: Solve for x
    x = 417,711,844/9,410
  6. Step 6: Final answer
    x = 44,390.21

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Why These Related Problems?

These problems maintain the same ratio (2.17) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.