Home / 28,584.78-42,877.18-11,935.73

Finding the Fourth Proportional to 28,584.78, 42,877.18 and 11,935.73

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Solution

The fourth proportional to 28,584.78, 42,877.18 and 11,935.73 is: 17,903.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,584.78 : 42,877.18 = 11,935.73 : x
  2. Step 2: Convert to fraction form
    28,584.78/42,877.18 = 11,935.73/x
  3. Step 3: Cross multiply
    28,584.78x = 42,877.18 × 11,935.73
  4. Step 4: Simplify right side
    28,584.78x = 511,770,565.75
  5. Step 5: Solve for x
    x = 511,770,565.75/28,584.78
  6. Step 6: Final answer
    x = 17,903.61

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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.