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Finding the Third Proportional to 13,088 and 19,905

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Solution

The third proportional to 13,088 and 19,905 is: 30,272.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,088 : 19,905 = 19,905 : x
  2. Step 2: Convert to fraction form
    13,088/19,905 = 19,905/x
  3. Step 3: Cross multiply
    13,088x = 19,905 × 19,905
  4. Step 4: Simplify right side
    13,088x = 396,209,025
  5. Step 5: Solve for x
    x = 396,209,025/13,088
  6. Step 6: Final answer
    x = 30,272.69

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Why These Related Problems?

These problems maintain the same ratio (1.52) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.