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Finding the Third Proportional to 19,479.75 and 27,759.75

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Solution

The third proportional to 19,479.75 and 27,759.75 is: 39,559.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,479.75 : 27,759.75 = 27,759.75 : x
  2. Step 2: Convert to fraction form
    19,479.75/27,759.75 = 27,759.75/x
  3. Step 3: Cross multiply
    19,479.75x = 27,759.75 × 27,759.75
  4. Step 4: Simplify right side
    19,479.75x = 770,603,720.06
  5. Step 5: Solve for x
    x = 770,603,720.06/19,479.75
  6. Step 6: Final answer
    x = 39,559.22

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Why These Related Problems?

These problems maintain the same ratio (1.43) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.