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Finding the Third Proportional to 15,364 and 31,916

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Solution

The third proportional to 15,364 and 31,916 is: 66,299.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,364 : 31,916 = 31,916 : x
  2. Step 2: Convert to fraction form
    15,364/31,916 = 31,916/x
  3. Step 3: Cross multiply
    15,364x = 31,916 × 31,916
  4. Step 4: Simplify right side
    15,364x = 1,018,631,056
  5. Step 5: Solve for x
    x = 1,018,631,056/15,364
  6. Step 6: Final answer
    x = 66,299.86

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Why These Related Problems?

These problems maintain the same ratio (2.08) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.