Home / 21,067.91-29,072.93-11,636.27

Finding the Fourth Proportional to 21,067.91, 29,072.93 and 11,636.27

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Solution

The fourth proportional to 21,067.91, 29,072.93 and 11,636.27 is: 16,057.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,067.91 : 29,072.93 = 11,636.27 : x
  2. Step 2: Convert to fraction form
    21,067.91/29,072.93 = 11,636.27/x
  3. Step 3: Cross multiply
    21,067.91x = 29,072.93 × 11,636.27
  4. Step 4: Simplify right side
    21,067.91x = 338,300,259.63
  5. Step 5: Solve for x
    x = 338,300,259.63/21,067.91
  6. Step 6: Final answer
    x = 16,057.61

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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.