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Finding the Third Proportional to 15,858 and 23,555

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Solution

The third proportional to 15,858 and 23,555 is: 34,987.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,858 : 23,555 = 23,555 : x
  2. Step 2: Convert to fraction form
    15,858/23,555 = 23,555/x
  3. Step 3: Cross multiply
    15,858x = 23,555 × 23,555
  4. Step 4: Simplify right side
    15,858x = 554,838,025
  5. Step 5: Solve for x
    x = 554,838,025/15,858
  6. Step 6: Final answer
    x = 34,987.89

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.