Home / 20,193.36-27,868.68-11,811.12

Finding the Fourth Proportional to 20,193.36, 27,868.68 and 11,811.12

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Solution

The fourth proportional to 20,193.36, 27,868.68 and 11,811.12 is: 16,300.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,193.36 : 27,868.68 = 11,811.12 : x
  2. Step 2: Convert to fraction form
    20,193.36/27,868.68 = 11,811.12/x
  3. Step 3: Cross multiply
    20,193.36x = 27,868.68 × 11,811.12
  4. Step 4: Simplify right side
    20,193.36x = 329,160,323.72
  5. Step 5: Solve for x
    x = 329,160,323.72/20,193.36
  6. Step 6: Final answer
    x = 16,300.42

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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.