Home / 20,221.11-27,904.76-11,268.42

Finding the Fourth Proportional to 20,221.11, 27,904.76 and 11,268.42

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Solution

The fourth proportional to 20,221.11, 27,904.76 and 11,268.42 is: 15,550.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,221.11 : 27,904.76 = 11,268.42 : x
  2. Step 2: Convert to fraction form
    20,221.11/27,904.76 = 11,268.42/x
  3. Step 3: Cross multiply
    20,221.11x = 27,904.76 × 11,268.42
  4. Step 4: Simplify right side
    20,221.11x = 314,442,499.34
  5. Step 5: Solve for x
    x = 314,442,499.34/20,221.11
  6. Step 6: Final answer
    x = 15,550.21

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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.