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Finding the Third Proportional to 20,240.50 and 28,304.50

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Solution

The third proportional to 20,240.50 and 28,304.50 is: 39,581.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,240.50 : 28,304.50 = 28,304.50 : x
  2. Step 2: Convert to fraction form
    20,240.50/28,304.50 = 28,304.50/x
  3. Step 3: Cross multiply
    20,240.50x = 28,304.50 × 28,304.50
  4. Step 4: Simplify right side
    20,240.50x = 801,144,720.25
  5. Step 5: Solve for x
    x = 801,144,720.25/20,240.50
  6. Step 6: Final answer
    x = 39,581.27

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1.5x scale

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.