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Finding the Third Proportional to 15,493 and 31,803

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Solution

The third proportional to 15,493 and 31,803 is: 65,283.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,493 : 31,803 = 31,803 : x
  2. Step 2: Convert to fraction form
    15,493/31,803 = 31,803/x
  3. Step 3: Cross multiply
    15,493x = 31,803 × 31,803
  4. Step 4: Simplify right side
    15,493x = 1,011,430,809
  5. Step 5: Solve for x
    x = 1,011,430,809/15,493
  6. Step 6: Final answer
    x = 65,283.08

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Why These Related Problems?

These problems maintain the same ratio (2.05) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.