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Finding the Third Proportional to 13,878.38 and 30,525

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Solution

The third proportional to 13,878.38 and 30,525 is: 67,138.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,878.38 : 30,525 = 30,525 : x
  2. Step 2: Convert to fraction form
    13,878.38/30,525 = 30,525/x
  3. Step 3: Cross multiply
    13,878.38x = 30,525 × 30,525
  4. Step 4: Simplify right side
    13,878.38x = 931,775,625
  5. Step 5: Solve for x
    x = 931,775,625/13,878.38
  6. Step 6: Final answer
    x = 67,138.67

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Why These Related Problems?

These problems maintain the same ratio (2.20) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.