Home / 31,161.38-46,742.07-19,760.57

Finding the Fourth Proportional to 31,161.38, 46,742.07 and 19,760.57

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Solution

The fourth proportional to 31,161.38, 46,742.07 and 19,760.57 is: 29,640.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,161.38 : 46,742.07 = 19,760.57 : x
  2. Step 2: Convert to fraction form
    31,161.38/46,742.07 = 19,760.57/x
  3. Step 3: Cross multiply
    31,161.38x = 46,742.07 × 19,760.57
  4. Step 4: Simplify right side
    31,161.38x = 923,649,712.47
  5. Step 5: Solve for x
    x = 923,649,712.47/31,161.38
  6. Step 6: Final answer
    x = 29,640.85

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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.