Home / 39,321.72-58,982.20-15,942.60

Finding the Fourth Proportional to 39,321.72, 58,982.20 and 15,942.60

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Solution

The fourth proportional to 39,321.72, 58,982.20 and 15,942.60 is: 23,913.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,321.72 : 58,982.20 = 15,942.60 : x
  2. Step 2: Convert to fraction form
    39,321.72/58,982.20 = 15,942.60/x
  3. Step 3: Cross multiply
    39,321.72x = 58,982.20 × 15,942.60
  4. Step 4: Simplify right side
    39,321.72x = 940,329,621.72
  5. Step 5: Solve for x
    x = 940,329,621.72/39,321.72
  6. Step 6: Final answer
    x = 23,913.75

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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.