Home / 20,040.07-27,664.15-11,976.57

Finding the Fourth Proportional to 20,040.07, 27,664.15 and 11,976.57

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Solution

The fourth proportional to 20,040.07, 27,664.15 and 11,976.57 is: 16,532.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,040.07 : 27,664.15 = 11,976.57 : x
  2. Step 2: Convert to fraction form
    20,040.07/27,664.15 = 11,976.57/x
  3. Step 3: Cross multiply
    20,040.07x = 27,664.15 × 11,976.57
  4. Step 4: Simplify right side
    20,040.07x = 331,321,628.97
  5. Step 5: Solve for x
    x = 331,321,628.97/20,040.07
  6. Step 6: Final answer
    x = 16,532.96

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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.