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Finding the Third Proportional to 13,583.75 and 20,779.25

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Solution

The third proportional to 13,583.75 and 20,779.25 is: 31,786.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,583.75 : 20,779.25 = 20,779.25 : x
  2. Step 2: Convert to fraction form
    13,583.75/20,779.25 = 20,779.25/x
  3. Step 3: Cross multiply
    13,583.75x = 20,779.25 × 20,779.25
  4. Step 4: Simplify right side
    13,583.75x = 431,777,230.56
  5. Step 5: Solve for x
    x = 431,777,230.56/13,583.75
  6. Step 6: Final answer
    x = 31,786.31

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Why These Related Problems?

These problems maintain the same ratio (1.53) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.