Home / 20,195.80-27,869.94-11,699.08

Finding the Fourth Proportional to 20,195.80, 27,869.94 and 11,699.08

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Solution

The fourth proportional to 20,195.80, 27,869.94 and 11,699.08 is: 16,144.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,195.80 : 27,869.94 = 11,699.08 : x
  2. Step 2: Convert to fraction form
    20,195.80/27,869.94 = 11,699.08/x
  3. Step 3: Cross multiply
    20,195.80x = 27,869.94 × 11,699.08
  4. Step 4: Simplify right side
    20,195.80x = 326,052,657.66
  5. Step 5: Solve for x
    x = 326,052,657.66/20,195.80
  6. Step 6: Final answer
    x = 16,144.58

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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.