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Finding the Third Proportional to 15,006 and 21,615

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Solution

The third proportional to 15,006 and 21,615 is: 31,134.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,006 : 21,615 = 21,615 : x
  2. Step 2: Convert to fraction form
    15,006/21,615 = 21,615/x
  3. Step 3: Cross multiply
    15,006x = 21,615 × 21,615
  4. Step 4: Simplify right side
    15,006x = 467,208,225
  5. Step 5: Solve for x
    x = 467,208,225/15,006
  6. Step 6: Final answer
    x = 31,134.76

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Why These Related Problems?

These problems maintain the same ratio (1.44) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.