Home / 20,169.54-27,832.68-11,216.52

Finding the Fourth Proportional to 20,169.54, 27,832.68 and 11,216.52

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Solution

The fourth proportional to 20,169.54, 27,832.68 and 11,216.52 is: 15,478.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,169.54 : 27,832.68 = 11,216.52 : x
  2. Step 2: Convert to fraction form
    20,169.54/27,832.68 = 11,216.52/x
  3. Step 3: Cross multiply
    20,169.54x = 27,832.68 × 11,216.52
  4. Step 4: Simplify right side
    20,169.54x = 312,185,811.87
  5. Step 5: Solve for x
    x = 312,185,811.87/20,169.54
  6. Step 6: Final answer
    x = 15,478.08

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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.