Home / 20,221.93-27,907.94-11,268.21

Finding the Fourth Proportional to 20,221.93, 27,907.94 and 11,268.21

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Solution

The fourth proportional to 20,221.93, 27,907.94 and 11,268.21 is: 15,551.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,221.93 : 27,907.94 = 11,268.21 : x
  2. Step 2: Convert to fraction form
    20,221.93/27,907.94 = 11,268.21/x
  3. Step 3: Cross multiply
    20,221.93x = 27,907.94 × 11,268.21
  4. Step 4: Simplify right side
    20,221.93x = 314,472,661.41
  5. Step 5: Solve for x
    x = 314,472,661.41/20,221.93
  6. Step 6: Final answer
    x = 15,551.07

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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.