Home / 20,169.08-27,832.45-11,217.42

Finding the Fourth Proportional to 20,169.08, 27,832.45 and 11,217.42

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Solution

The fourth proportional to 20,169.08, 27,832.45 and 11,217.42 is: 15,479.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,169.08 : 27,832.45 = 11,217.42 : x
  2. Step 2: Convert to fraction form
    20,169.08/27,832.45 = 11,217.42/x
  3. Step 3: Cross multiply
    20,169.08x = 27,832.45 × 11,217.42
  4. Step 4: Simplify right side
    20,169.08x = 312,208,281.28
  5. Step 5: Solve for x
    x = 312,208,281.28/20,169.08
  6. Step 6: Final answer
    x = 15,479.55

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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.