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Finding the Third Proportional to 7,820 and 15,932

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Solution

The third proportional to 7,820 and 15,932 is: 32,458.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,820 : 15,932 = 15,932 : x
  2. Step 2: Convert to fraction form
    7,820/15,932 = 15,932/x
  3. Step 3: Cross multiply
    7,820x = 15,932 × 15,932
  4. Step 4: Simplify right side
    7,820x = 253,828,624
  5. Step 5: Solve for x
    x = 253,828,624/7,820
  6. Step 6: Final answer
    x = 32,458.90

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Why These Related Problems?

These problems maintain the same ratio (2.04) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.