Home / 20,932.16-31,361.32-11,049.64

Finding the Fourth Proportional to 20,932.16, 31,361.32 and 11,049.64

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Solution

The fourth proportional to 20,932.16, 31,361.32 and 11,049.64 is: 16,554.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,932.16 : 31,361.32 = 11,049.64 : x
  2. Step 2: Convert to fraction form
    20,932.16/31,361.32 = 11,049.64/x
  3. Step 3: Cross multiply
    20,932.16x = 31,361.32 × 11,049.64
  4. Step 4: Simplify right side
    20,932.16x = 346,531,295.92
  5. Step 5: Solve for x
    x = 346,531,295.92/20,932.16
  6. Step 6: Final answer
    x = 16,554.97

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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.