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Finding the Third Proportional to 13,258 and 21,103

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Solution

The third proportional to 13,258 and 21,103 is: 33,590.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,258 : 21,103 = 21,103 : x
  2. Step 2: Convert to fraction form
    13,258/21,103 = 21,103/x
  3. Step 3: Cross multiply
    13,258x = 21,103 × 21,103
  4. Step 4: Simplify right side
    13,258x = 445,336,609
  5. Step 5: Solve for x
    x = 445,336,609/13,258
  6. Step 6: Final answer
    x = 33,590.03

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Why These Related Problems?

These problems maintain the same ratio (1.59) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.