Home / 15,629.64-23,442.30-3,942.15

Finding the Fourth Proportional to 15,629.64, 23,442.30 and 3,942.15

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Solution

The fourth proportional to 15,629.64, 23,442.30 and 3,942.15 is: 5,912.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,629.64 : 23,442.30 = 3,942.15 : x
  2. Step 2: Convert to fraction form
    15,629.64/23,442.30 = 3,942.15/x
  3. Step 3: Cross multiply
    15,629.64x = 23,442.30 × 3,942.15
  4. Step 4: Simplify right side
    15,629.64x = 92,413,062.95
  5. Step 5: Solve for x
    x = 92,413,062.95/15,629.64
  6. Step 6: Final answer
    x = 5,912.68

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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.