Home / 20,150.40-27,805.96-11,197.76

Finding the Fourth Proportional to 20,150.40, 27,805.96 and 11,197.76

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Solution

The fourth proportional to 20,150.40, 27,805.96 and 11,197.76 is: 15,452.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,150.40 : 27,805.96 = 11,197.76 : x
  2. Step 2: Convert to fraction form
    20,150.40/27,805.96 = 11,197.76/x
  3. Step 3: Cross multiply
    20,150.40x = 27,805.96 × 11,197.76
  4. Step 4: Simplify right side
    20,150.40x = 311,364,466.65
  5. Step 5: Solve for x
    x = 311,364,466.65/20,150.40
  6. Step 6: Final answer
    x = 15,452.02

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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.