Home / 31,347.92-47,022.14-7,974.38

Finding the Fourth Proportional to 31,347.92, 47,022.14 and 7,974.38

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Solution

The fourth proportional to 31,347.92, 47,022.14 and 7,974.38 is: 11,961.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,347.92 : 47,022.14 = 7,974.38 : x
  2. Step 2: Convert to fraction form
    31,347.92/47,022.14 = 7,974.38/x
  3. Step 3: Cross multiply
    31,347.92x = 47,022.14 × 7,974.38
  4. Step 4: Simplify right side
    31,347.92x = 374,972,197.60
  5. Step 5: Solve for x
    x = 374,972,197.60/31,347.92
  6. Step 6: Final answer
    x = 11,961.63

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1.5x scale

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.