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Finding the Fourth Proportional to 36,894.88, 55,303.44 and 18,388

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Solution

The fourth proportional to 36,894.88, 55,303.44 and 18,388 is: 27,562.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    36,894.88 : 55,303.44 = 18,388 : x
  2. Step 2: Convert to fraction form
    36,894.88/55,303.44 = 18,388/x
  3. Step 3: Cross multiply
    36,894.88x = 55,303.44 × 18,388
  4. Step 4: Simplify right side
    36,894.88x = 1,016,919,654.72
  5. Step 5: Solve for x
    x = 1,016,919,654.72/36,894.88
  6. Step 6: Final answer
    x = 27,562.62

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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.