Home / 20,190.66-27,863.91-11,237.82

Finding the Fourth Proportional to 20,190.66, 27,863.91 and 11,237.82

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Solution

The fourth proportional to 20,190.66, 27,863.91 and 11,237.82 is: 15,508.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,190.66 : 27,863.91 = 11,237.82 : x
  2. Step 2: Convert to fraction form
    20,190.66/27,863.91 = 11,237.82/x
  3. Step 3: Cross multiply
    20,190.66x = 27,863.91 × 11,237.82
  4. Step 4: Simplify right side
    20,190.66x = 313,129,605.08
  5. Step 5: Solve for x
    x = 313,129,605.08/20,190.66
  6. Step 6: Final answer
    x = 15,508.64

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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.