Home / 31,112.15-46,668.13-7,738.58

Finding the Fourth Proportional to 31,112.15, 46,668.13 and 7,738.58

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Solution

The fourth proportional to 31,112.15, 46,668.13 and 7,738.58 is: 11,607.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,112.15 : 46,668.13 = 7,738.58 : x
  2. Step 2: Convert to fraction form
    31,112.15/46,668.13 = 7,738.58/x
  3. Step 3: Cross multiply
    31,112.15x = 46,668.13 × 7,738.58
  4. Step 4: Simplify right side
    31,112.15x = 361,145,135.43
  5. Step 5: Solve for x
    x = 361,145,135.43/31,112.15
  6. Step 6: Final answer
    x = 11,607.85

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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.