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Finding the Fourth Proportional to 38,556.28, 57,822.03 and 12,254.87

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Solution

The fourth proportional to 38,556.28, 57,822.03 and 12,254.87 is: 18,378.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,556.28 : 57,822.03 = 12,254.87 : x
  2. Step 2: Convert to fraction form
    38,556.28/57,822.03 = 12,254.87/x
  3. Step 3: Cross multiply
    38,556.28x = 57,822.03 × 12,254.87
  4. Step 4: Simplify right side
    38,556.28x = 708,601,605.34
  5. Step 5: Solve for x
    x = 708,601,605.34/38,556.28
  6. Step 6: Final answer
    x = 18,378.37

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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.