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Finding the Third Proportional to 7,021.50 and 15,361.88

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Solution

The third proportional to 7,021.50 and 15,361.88 is: 33,609.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,021.50 : 15,361.88 = 15,361.88 : x
  2. Step 2: Convert to fraction form
    7,021.50/15,361.88 = 15,361.88/x
  3. Step 3: Cross multiply
    7,021.50x = 15,361.88 × 15,361.88
  4. Step 4: Simplify right side
    7,021.50x = 235,987,203.52
  5. Step 5: Solve for x
    x = 235,987,203.52/7,021.50
  6. Step 6: Final answer
    x = 33,609.23

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Why These Related Problems?

These problems maintain the same ratio (2.19) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.