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Finding the Third Proportional to 15,408 and 22,019

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Solution

The third proportional to 15,408 and 22,019 is: 31,466.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,408 : 22,019 = 22,019 : x
  2. Step 2: Convert to fraction form
    15,408/22,019 = 22,019/x
  3. Step 3: Cross multiply
    15,408x = 22,019 × 22,019
  4. Step 4: Simplify right side
    15,408x = 484,836,361
  5. Step 5: Solve for x
    x = 484,836,361/15,408
  6. Step 6: Final answer
    x = 31,466.53

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1.5x scale

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.