Home / 20,120.08-27,769.02-11,736.56

Finding the Fourth Proportional to 20,120.08, 27,769.02 and 11,736.56

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Solution

The fourth proportional to 20,120.08, 27,769.02 and 11,736.56 is: 16,198.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,120.08 : 27,769.02 = 11,736.56 : x
  2. Step 2: Convert to fraction form
    20,120.08/27,769.02 = 11,736.56/x
  3. Step 3: Cross multiply
    20,120.08x = 27,769.02 × 11,736.56
  4. Step 4: Simplify right side
    20,120.08x = 325,912,769.37
  5. Step 5: Solve for x
    x = 325,912,769.37/20,120.08
  6. Step 6: Final answer
    x = 16,198.38

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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.