Home / 39,847.52-54,989.94-21,942.60

Finding the Fourth Proportional to 39,847.52, 54,989.94 and 21,942.60

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Solution

The fourth proportional to 39,847.52, 54,989.94 and 21,942.60 is: 30,280.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,847.52 : 54,989.94 = 21,942.60 : x
  2. Step 2: Convert to fraction form
    39,847.52/54,989.94 = 21,942.60/x
  3. Step 3: Cross multiply
    39,847.52x = 54,989.94 × 21,942.60
  4. Step 4: Simplify right side
    39,847.52x = 1,206,621,872.78
  5. Step 5: Solve for x
    x = 1,206,621,872.78/39,847.52
  6. Step 6: Final answer
    x = 30,280.98

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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.