Home / 20,195.09-27,868.97-11,699.94

Finding the Fourth Proportional to 20,195.09, 27,868.97 and 11,699.94

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Solution

The fourth proportional to 20,195.09, 27,868.97 and 11,699.94 is: 16,145.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,195.09 : 27,868.97 = 11,699.94 : x
  2. Step 2: Convert to fraction form
    20,195.09/27,868.97 = 11,699.94/x
  3. Step 3: Cross multiply
    20,195.09x = 27,868.97 × 11,699.94
  4. Step 4: Simplify right side
    20,195.09x = 326,065,218.36
  5. Step 5: Solve for x
    x = 326,065,218.36/20,195.09
  6. Step 6: Final answer
    x = 16,145.77

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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.