Home / 31,147.92-46,722.24-7,774.56

Finding the Fourth Proportional to 31,147.92, 46,722.24 and 7,774.56

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Solution

The fourth proportional to 31,147.92, 46,722.24 and 7,774.56 is: 11,661.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,147.92 : 46,722.24 = 7,774.56 : x
  2. Step 2: Convert to fraction form
    31,147.92/46,722.24 = 7,774.56/x
  3. Step 3: Cross multiply
    31,147.92x = 46,722.24 × 7,774.56
  4. Step 4: Simplify right side
    31,147.92x = 363,244,858.21
  5. Step 5: Solve for x
    x = 363,244,858.21/31,147.92
  6. Step 6: Final answer
    x = 11,661.93

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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.