Home / 31,176.80-46,785.66-11,455.52

Finding the Fourth Proportional to 31,176.80, 46,785.66 and 11,455.52

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Solution

The fourth proportional to 31,176.80, 46,785.66 and 11,455.52 is: 17,190.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,176.80 : 46,785.66 = 11,455.52 : x
  2. Step 2: Convert to fraction form
    31,176.80/46,785.66 = 11,455.52/x
  3. Step 3: Cross multiply
    31,176.80x = 46,785.66 × 11,455.52
  4. Step 4: Simplify right side
    31,176.80x = 535,954,063.84
  5. Step 5: Solve for x
    x = 535,954,063.84/31,176.80
  6. Step 6: Final answer
    x = 17,190.80

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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.