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Finding the Third Proportional to 15,444 and 30,120

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Solution

The third proportional to 15,444 and 30,120 is: 58,742.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,444 : 30,120 = 30,120 : x
  2. Step 2: Convert to fraction form
    15,444/30,120 = 30,120/x
  3. Step 3: Cross multiply
    15,444x = 30,120 × 30,120
  4. Step 4: Simplify right side
    15,444x = 907,214,400
  5. Step 5: Solve for x
    x = 907,214,400/15,444
  6. Step 6: Final answer
    x = 58,742.19

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Why These Related Problems?

These problems maintain the same ratio (1.95) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.