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Finding the Third Proportional to 21,262 and 43,388

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Solution

The third proportional to 21,262 and 43,388 is: 88,539.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,262 : 43,388 = 43,388 : x
  2. Step 2: Convert to fraction form
    21,262/43,388 = 43,388/x
  3. Step 3: Cross multiply
    21,262x = 43,388 × 43,388
  4. Step 4: Simplify right side
    21,262x = 1,882,518,544
  5. Step 5: Solve for x
    x = 1,882,518,544/21,262
  6. Step 6: Final answer
    x = 88,539.11

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Why These Related Problems?

These problems maintain the same ratio (2.04) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.