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Finding the Third Proportional to 15,615 and 34,932

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Solution

The third proportional to 15,615 and 34,932 is: 78,145.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,615 : 34,932 = 34,932 : x
  2. Step 2: Convert to fraction form
    15,615/34,932 = 34,932/x
  3. Step 3: Cross multiply
    15,615x = 34,932 × 34,932
  4. Step 4: Simplify right side
    15,615x = 1,220,244,624
  5. Step 5: Solve for x
    x = 1,220,244,624/15,615
  6. Step 6: Final answer
    x = 78,145.67

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Why These Related Problems?

These problems maintain the same ratio (2.24) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.