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Finding the Third Proportional to 18,007.50 and 39,295.50

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Solution

The third proportional to 18,007.50 and 39,295.50 is: 85,749.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,007.50 : 39,295.50 = 39,295.50 : x
  2. Step 2: Convert to fraction form
    18,007.50/39,295.50 = 39,295.50/x
  3. Step 3: Cross multiply
    18,007.50x = 39,295.50 × 39,295.50
  4. Step 4: Simplify right side
    18,007.50x = 1,544,136,320.25
  5. Step 5: Solve for x
    x = 1,544,136,320.25/18,007.50
  6. Step 6: Final answer
    x = 85,749.62

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Why These Related Problems?

These problems maintain the same ratio (2.18) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.