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Finding the Third Proportional to 9,051.75 and 18,931.31

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Solution

The third proportional to 9,051.75 and 18,931.31 is: 39,593.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,051.75 : 18,931.31 = 18,931.31 : x
  2. Step 2: Convert to fraction form
    9,051.75/18,931.31 = 18,931.31/x
  3. Step 3: Cross multiply
    9,051.75x = 18,931.31 × 18,931.31
  4. Step 4: Simplify right side
    9,051.75x = 358,394,592.97
  5. Step 5: Solve for x
    x = 358,394,592.97/9,051.75
  6. Step 6: Final answer
    x = 39,593.96

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Why These Related Problems?

These problems maintain the same ratio (2.09) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.