Home / 20,269.38-27,976.41-11,888.58

Finding the Fourth Proportional to 20,269.38, 27,976.41 and 11,888.58

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Solution

The fourth proportional to 20,269.38, 27,976.41 and 11,888.58 is: 16,408.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,269.38 : 27,976.41 = 11,888.58 : x
  2. Step 2: Convert to fraction form
    20,269.38/27,976.41 = 11,888.58/x
  3. Step 3: Cross multiply
    20,269.38x = 27,976.41 × 11,888.58
  4. Step 4: Simplify right side
    20,269.38x = 332,599,788.40
  5. Step 5: Solve for x
    x = 332,599,788.40/20,269.38
  6. Step 6: Final answer
    x = 16,408.98

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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.