Home / 20,164.91-27,827.10-11,212.39

Finding the Fourth Proportional to 20,164.91, 27,827.10 and 11,212.39

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Solution

The fourth proportional to 20,164.91, 27,827.10 and 11,212.39 is: 15,472.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,164.91 : 27,827.10 = 11,212.39 : x
  2. Step 2: Convert to fraction form
    20,164.91/27,827.10 = 11,212.39/x
  3. Step 3: Cross multiply
    20,164.91x = 27,827.10 × 11,212.39
  4. Step 4: Simplify right side
    20,164.91x = 312,008,297.77
  5. Step 5: Solve for x
    x = 312,008,297.77/20,164.91
  6. Step 6: Final answer
    x = 15,472.83

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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.