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Finding the Fourth Proportional to 38,408, 57,612 and 9,224

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Solution

The fourth proportional to 38,408, 57,612 and 9,224 is: 13,836

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,408 : 57,612 = 9,224 : x
  2. Step 2: Convert to fraction form
    38,408/57,612 = 9,224/x
  3. Step 3: Cross multiply
    38,408x = 57,612 × 9,224
  4. Step 4: Simplify right side
    38,408x = 531,413,088
  5. Step 5: Solve for x
    x = 531,413,088/38,408
  6. Step 6: Final answer
    x = 13,836

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.