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Finding the Third Proportional to 9,129.75 and 19,823.25

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Solution

The third proportional to 9,129.75 and 19,823.25 is: 43,041.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,129.75 : 19,823.25 = 19,823.25 : x
  2. Step 2: Convert to fraction form
    9,129.75/19,823.25 = 19,823.25/x
  3. Step 3: Cross multiply
    9,129.75x = 19,823.25 × 19,823.25
  4. Step 4: Simplify right side
    9,129.75x = 392,961,240.56
  5. Step 5: Solve for x
    x = 392,961,240.56/9,129.75
  6. Step 6: Final answer
    x = 43,041.84

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Why These Related Problems?

These problems maintain the same ratio (2.17) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.