Home / 20,238.74-27,927.33-11,284.55

Finding the Fourth Proportional to 20,238.74, 27,927.33 and 11,284.55

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Solution

The fourth proportional to 20,238.74, 27,927.33 and 11,284.55 is: 15,571.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,238.74 : 27,927.33 = 11,284.55 : x
  2. Step 2: Convert to fraction form
    20,238.74/27,927.33 = 11,284.55/x
  3. Step 3: Cross multiply
    20,238.74x = 27,927.33 × 11,284.55
  4. Step 4: Simplify right side
    20,238.74x = 315,147,351.75
  5. Step 5: Solve for x
    x = 315,147,351.75/20,238.74
  6. Step 6: Final answer
    x = 15,571.49

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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.