Home / 27,782.11-38,338.92-15,845.64

Finding the Fourth Proportional to 27,782.11, 38,338.92 and 15,845.64

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Solution

The fourth proportional to 27,782.11, 38,338.92 and 15,845.64 is: 21,866.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,782.11 : 38,338.92 = 15,845.64 : x
  2. Step 2: Convert to fraction form
    27,782.11/38,338.92 = 15,845.64/x
  3. Step 3: Cross multiply
    27,782.11x = 38,338.92 × 15,845.64
  4. Step 4: Simplify right side
    27,782.11x = 607,504,724.31
  5. Step 5: Solve for x
    x = 607,504,724.31/27,782.11
  6. Step 6: Final answer
    x = 21,866.76

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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.