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Finding the Third Proportional to 21,629 and 47,955

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Solution

The third proportional to 21,629 and 47,955 is: 106,324.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,629 : 47,955 = 47,955 : x
  2. Step 2: Convert to fraction form
    21,629/47,955 = 47,955/x
  3. Step 3: Cross multiply
    21,629x = 47,955 × 47,955
  4. Step 4: Simplify right side
    21,629x = 2,299,682,025
  5. Step 5: Solve for x
    x = 2,299,682,025/21,629
  6. Step 6: Final answer
    x = 106,324.01

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Why These Related Problems?

These problems maintain the same ratio (2.22) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.