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Finding the Third Proportional to 27,855 and 39,040.50

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Solution

The third proportional to 27,855 and 39,040.50 is: 54,717.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,855 : 39,040.50 = 39,040.50 : x
  2. Step 2: Convert to fraction form
    27,855/39,040.50 = 39,040.50/x
  3. Step 3: Cross multiply
    27,855x = 39,040.50 × 39,040.50
  4. Step 4: Simplify right side
    27,855x = 1,524,160,640.25
  5. Step 5: Solve for x
    x = 1,524,160,640.25/27,855
  6. Step 6: Final answer
    x = 54,717.67

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Why These Related Problems?

These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.