Home / 20,187.36-27,858.96-11,234.52

Finding the Fourth Proportional to 20,187.36, 27,858.96 and 11,234.52

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Solution

The fourth proportional to 20,187.36, 27,858.96 and 11,234.52 is: 15,503.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,187.36 : 27,858.96 = 11,234.52 : x
  2. Step 2: Convert to fraction form
    20,187.36/27,858.96 = 11,234.52/x
  3. Step 3: Cross multiply
    20,187.36x = 27,858.96 × 11,234.52
  4. Step 4: Simplify right side
    20,187.36x = 312,982,043.30
  5. Step 5: Solve for x
    x = 312,982,043.30/20,187.36
  6. Step 6: Final answer
    x = 15,503.86

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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.