Home / 20,147.24-27,803.16-11,195.57

Finding the Fourth Proportional to 20,147.24, 27,803.16 and 11,195.57

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Solution

The fourth proportional to 20,147.24, 27,803.16 and 11,195.57 is: 15,449.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,147.24 : 27,803.16 = 11,195.57 : x
  2. Step 2: Convert to fraction form
    20,147.24/27,803.16 = 11,195.57/x
  3. Step 3: Cross multiply
    20,147.24x = 27,803.16 × 11,195.57
  4. Step 4: Simplify right side
    20,147.24x = 311,272,224.00
  5. Step 5: Solve for x
    x = 311,272,224.00/20,147.24
  6. Step 6: Final answer
    x = 15,449.87

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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.