Home / 20,704.51-28,571.94-11,273.07

Finding the Fourth Proportional to 20,704.51, 28,571.94 and 11,273.07

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Solution

The fourth proportional to 20,704.51, 28,571.94 and 11,273.07 is: 15,556.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,704.51 : 28,571.94 = 11,273.07 : x
  2. Step 2: Convert to fraction form
    20,704.51/28,571.94 = 11,273.07/x
  3. Step 3: Cross multiply
    20,704.51x = 28,571.94 × 11,273.07
  4. Step 4: Simplify right side
    20,704.51x = 322,093,586.80
  5. Step 5: Solve for x
    x = 322,093,586.80/20,704.51
  6. Step 6: Final answer
    x = 15,556.69

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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.