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Finding the Fourth Proportional to 38,503.89, 57,722.09 and 18,503.37

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Solution

The fourth proportional to 38,503.89, 57,722.09 and 18,503.37 is: 27,738.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,503.89 : 57,722.09 = 18,503.37 : x
  2. Step 2: Convert to fraction form
    38,503.89/57,722.09 = 18,503.37/x
  3. Step 3: Cross multiply
    38,503.89x = 57,722.09 × 18,503.37
  4. Step 4: Simplify right side
    38,503.89x = 1,068,053,095.93
  5. Step 5: Solve for x
    x = 1,068,053,095.93/38,503.89
  6. Step 6: Final answer
    x = 27,738.84

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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.