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Finding the Third Proportional to 15,858 and 34,308

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Solution

The third proportional to 15,858 and 34,308 is: 74,223.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,858 : 34,308 = 34,308 : x
  2. Step 2: Convert to fraction form
    15,858/34,308 = 34,308/x
  3. Step 3: Cross multiply
    15,858x = 34,308 × 34,308
  4. Step 4: Simplify right side
    15,858x = 1,177,038,864
  5. Step 5: Solve for x
    x = 1,177,038,864/15,858
  6. Step 6: Final answer
    x = 74,223.66

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Why These Related Problems?

These problems maintain the same ratio (2.16) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.