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Finding the Third Proportional to 8,919 and 20,740.50

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Solution

The third proportional to 8,919 and 20,740.50 is: 48,230.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,919 : 20,740.50 = 20,740.50 : x
  2. Step 2: Convert to fraction form
    8,919/20,740.50 = 20,740.50/x
  3. Step 3: Cross multiply
    8,919x = 20,740.50 × 20,740.50
  4. Step 4: Simplify right side
    8,919x = 430,168,340.25
  5. Step 5: Solve for x
    x = 430,168,340.25/8,919
  6. Step 6: Final answer
    x = 48,230.56

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (2.33) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.