Home / 20,147.68-27,803.37-11,195.02

Finding the Fourth Proportional to 20,147.68, 27,803.37 and 11,195.02

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Solution

The fourth proportional to 20,147.68, 27,803.37 and 11,195.02 is: 15,448.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,147.68 : 27,803.37 = 11,195.02 : x
  2. Step 2: Convert to fraction form
    20,147.68/27,803.37 = 11,195.02/x
  3. Step 3: Cross multiply
    20,147.68x = 27,803.37 × 11,195.02
  4. Step 4: Simplify right side
    20,147.68x = 311,259,283.22
  5. Step 5: Solve for x
    x = 311,259,283.22/20,147.68
  6. Step 6: Final answer
    x = 15,448.89

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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.