Home / 20,899.44-31,359.92-13,884.29

Finding the Fourth Proportional to 20,899.44, 31,359.92 and 13,884.29

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Solution

The fourth proportional to 20,899.44, 31,359.92 and 13,884.29 is: 20,833.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,899.44 : 31,359.92 = 13,884.29 : x
  2. Step 2: Convert to fraction form
    20,899.44/31,359.92 = 13,884.29/x
  3. Step 3: Cross multiply
    20,899.44x = 31,359.92 × 13,884.29
  4. Step 4: Simplify right side
    20,899.44x = 435,410,223.66
  5. Step 5: Solve for x
    x = 435,410,223.66/20,899.44
  6. Step 6: Final answer
    x = 20,833.58

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.