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Finding the Third Proportional to 8,986.50 and 20,985.75

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Solution

The third proportional to 8,986.50 and 20,985.75 is: 49,007.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,986.50 : 20,985.75 = 20,985.75 : x
  2. Step 2: Convert to fraction form
    8,986.50/20,985.75 = 20,985.75/x
  3. Step 3: Cross multiply
    8,986.50x = 20,985.75 × 20,985.75
  4. Step 4: Simplify right side
    8,986.50x = 440,401,703.06
  5. Step 5: Solve for x
    x = 440,401,703.06/8,986.50
  6. Step 6: Final answer
    x = 49,007.03

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Why These Related Problems?

These problems maintain the same ratio (2.34) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.