Home / 20,109.27-27,754.83-11,612.77

Finding the Fourth Proportional to 20,109.27, 27,754.83 and 11,612.77

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Solution

The fourth proportional to 20,109.27, 27,754.83 and 11,612.77 is: 16,027.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,109.27 : 27,754.83 = 11,612.77 : x
  2. Step 2: Convert to fraction form
    20,109.27/27,754.83 = 11,612.77/x
  3. Step 3: Cross multiply
    20,109.27x = 27,754.83 × 11,612.77
  4. Step 4: Simplify right side
    20,109.27x = 322,310,472.22
  5. Step 5: Solve for x
    x = 322,310,472.22/20,109.27
  6. Step 6: Final answer
    x = 16,027.96

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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.