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Finding the Third Proportional to 20,751.75 and 28,824.75

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Solution

The third proportional to 20,751.75 and 28,824.75 is: 40,038.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,751.75 : 28,824.75 = 28,824.75 : x
  2. Step 2: Convert to fraction form
    20,751.75/28,824.75 = 28,824.75/x
  3. Step 3: Cross multiply
    20,751.75x = 28,824.75 × 28,824.75
  4. Step 4: Simplify right side
    20,751.75x = 830,866,212.56
  5. Step 5: Solve for x
    x = 830,866,212.56/20,751.75
  6. Step 6: Final answer
    x = 40,038.37

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Why These Related Problems?

These problems maintain the same ratio (1.39) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.