Home / 20,169.30-27,833.58-11,216.91

Finding the Fourth Proportional to 20,169.30, 27,833.58 and 11,216.91

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Solution

The fourth proportional to 20,169.30, 27,833.58 and 11,216.91 is: 15,479.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,169.30 : 27,833.58 = 11,216.91 : x
  2. Step 2: Convert to fraction form
    20,169.30/27,833.58 = 11,216.91/x
  3. Step 3: Cross multiply
    20,169.30x = 27,833.58 × 11,216.91
  4. Step 4: Simplify right side
    20,169.30x = 312,206,761.84
  5. Step 5: Solve for x
    x = 312,206,761.84/20,169.30
  6. Step 6: Final answer
    x = 15,479.31

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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.