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Finding the Fourth Proportional to 43,859.78, 65,794.80 and 15,388.02

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Solution

The fourth proportional to 43,859.78, 65,794.80 and 15,388.02 is: 23,083.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,859.78 : 65,794.80 = 15,388.02 : x
  2. Step 2: Convert to fraction form
    43,859.78/65,794.80 = 15,388.02/x
  3. Step 3: Cross multiply
    43,859.78x = 65,794.80 × 15,388.02
  4. Step 4: Simplify right side
    43,859.78x = 1,012,451,698.30
  5. Step 5: Solve for x
    x = 1,012,451,698.30/43,859.78
  6. Step 6: Final answer
    x = 23,083.83

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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.