Home / 20,169.56-27,833.85-11,217.02

Finding the Fourth Proportional to 20,169.56, 27,833.85 and 11,217.02

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Solution

The fourth proportional to 20,169.56, 27,833.85 and 11,217.02 is: 15,479.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,169.56 : 27,833.85 = 11,217.02 : x
  2. Step 2: Convert to fraction form
    20,169.56/27,833.85 = 11,217.02/x
  3. Step 3: Cross multiply
    20,169.56x = 27,833.85 × 11,217.02
  4. Step 4: Simplify right side
    20,169.56x = 312,212,852.13
  5. Step 5: Solve for x
    x = 312,212,852.13/20,169.56
  6. Step 6: Final answer
    x = 15,479.41

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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.