Home / 31,647.24-47,474.11-11,942.38

Finding the Fourth Proportional to 31,647.24, 47,474.11 and 11,942.38

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Solution

The fourth proportional to 31,647.24, 47,474.11 and 11,942.38 is: 17,914.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,647.24 : 47,474.11 = 11,942.38 : x
  2. Step 2: Convert to fraction form
    31,647.24/47,474.11 = 11,942.38/x
  3. Step 3: Cross multiply
    31,647.24x = 47,474.11 × 11,942.38
  4. Step 4: Simplify right side
    31,647.24x = 566,953,861.78
  5. Step 5: Solve for x
    x = 566,953,861.78/31,647.24
  6. Step 6: Final answer
    x = 17,914.80

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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.