Home / 19,571.10-27,007.78-11,911.61

Finding the Fourth Proportional to 19,571.10, 27,007.78 and 11,911.61

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Solution

The fourth proportional to 19,571.10, 27,007.78 and 11,911.61 is: 16,437.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,571.10 : 27,007.78 = 11,911.61 : x
  2. Step 2: Convert to fraction form
    19,571.10/27,007.78 = 11,911.61/x
  3. Step 3: Cross multiply
    19,571.10x = 27,007.78 × 11,911.61
  4. Step 4: Simplify right side
    19,571.10x = 321,706,050.48
  5. Step 5: Solve for x
    x = 321,706,050.48/19,571.10
  6. Step 6: Final answer
    x = 16,437.81

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.