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Finding the Fourth Proportional to 38,203.36, 57,305.04 and 11,908.08

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Solution

The fourth proportional to 38,203.36, 57,305.04 and 11,908.08 is: 17,862.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,203.36 : 57,305.04 = 11,908.08 : x
  2. Step 2: Convert to fraction form
    38,203.36/57,305.04 = 11,908.08/x
  3. Step 3: Cross multiply
    38,203.36x = 57,305.04 × 11,908.08
  4. Step 4: Simplify right side
    38,203.36x = 682,393,000.72
  5. Step 5: Solve for x
    x = 682,393,000.72/38,203.36
  6. Step 6: Final answer
    x = 17,862.12

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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.