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Finding the Third Proportional to 21,383 and 49,555

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Solution

The third proportional to 21,383 and 49,555 is: 114,843.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,383 : 49,555 = 49,555 : x
  2. Step 2: Convert to fraction form
    21,383/49,555 = 49,555/x
  3. Step 3: Cross multiply
    21,383x = 49,555 × 49,555
  4. Step 4: Simplify right side
    21,383x = 2,455,698,025
  5. Step 5: Solve for x
    x = 2,455,698,025/21,383
  6. Step 6: Final answer
    x = 114,843.47

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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.