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Finding the Third Proportional to 15,311 and 26,423

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Solution

The third proportional to 15,311 and 26,423 is: 45,599.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,311 : 26,423 = 26,423 : x
  2. Step 2: Convert to fraction form
    15,311/26,423 = 26,423/x
  3. Step 3: Cross multiply
    15,311x = 26,423 × 26,423
  4. Step 4: Simplify right side
    15,311x = 698,174,929
  5. Step 5: Solve for x
    x = 698,174,929/15,311
  6. Step 6: Final answer
    x = 45,599.56

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Why These Related Problems?

These problems maintain the same ratio (1.73) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.