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Finding the Third Proportional to 13,833 and 21,455

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Solution

The third proportional to 13,833 and 21,455 is: 33,276.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,833 : 21,455 = 21,455 : x
  2. Step 2: Convert to fraction form
    13,833/21,455 = 21,455/x
  3. Step 3: Cross multiply
    13,833x = 21,455 × 21,455
  4. Step 4: Simplify right side
    13,833x = 460,317,025
  5. Step 5: Solve for x
    x = 460,317,025/13,833
  6. Step 6: Final answer
    x = 33,276.73

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Why These Related Problems?

These problems maintain the same ratio (1.55) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.