Home / 18,932.22-28,377.09-6,440.58

Finding the Fourth Proportional to 18,932.22, 28,377.09 and 6,440.58

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Solution

The fourth proportional to 18,932.22, 28,377.09 and 6,440.58 is: 9,653.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,932.22 : 28,377.09 = 6,440.58 : x
  2. Step 2: Convert to fraction form
    18,932.22/28,377.09 = 6,440.58/x
  3. Step 3: Cross multiply
    18,932.22x = 28,377.09 × 6,440.58
  4. Step 4: Simplify right side
    18,932.22x = 182,764,918.31
  5. Step 5: Solve for x
    x = 182,764,918.31/18,932.22
  6. Step 6: Final answer
    x = 9,653.64

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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.