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Finding the Third Proportional to 15,818 and 23,691

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Solution

The third proportional to 15,818 and 23,691 is: 35,482.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,818 : 23,691 = 23,691 : x
  2. Step 2: Convert to fraction form
    15,818/23,691 = 23,691/x
  3. Step 3: Cross multiply
    15,818x = 23,691 × 23,691
  4. Step 4: Simplify right side
    15,818x = 561,263,481
  5. Step 5: Solve for x
    x = 561,263,481/15,818
  6. Step 6: Final answer
    x = 35,482.58

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.