Home / 39,704.20-54,791.91-21,800.37

Finding the Fourth Proportional to 39,704.20, 54,791.91 and 21,800.37

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Solution

The fourth proportional to 39,704.20, 54,791.91 and 21,800.37 is: 30,084.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,704.20 : 54,791.91 = 21,800.37 : x
  2. Step 2: Convert to fraction form
    39,704.20/54,791.91 = 21,800.37/x
  3. Step 3: Cross multiply
    39,704.20x = 54,791.91 × 21,800.37
  4. Step 4: Simplify right side
    39,704.20x = 1,194,483,528.05
  5. Step 5: Solve for x
    x = 1,194,483,528.05/39,704.20
  6. Step 6: Final answer
    x = 30,084.56

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.