Home / 28,531.24-42,786.39-9,805.97

Finding the Fourth Proportional to 28,531.24, 42,786.39 and 9,805.97

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Solution

The fourth proportional to 28,531.24, 42,786.39 and 9,805.97 is: 14,705.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,531.24 : 42,786.39 = 9,805.97 : x
  2. Step 2: Convert to fraction form
    28,531.24/42,786.39 = 9,805.97/x
  3. Step 3: Cross multiply
    28,531.24x = 42,786.39 × 9,805.97
  4. Step 4: Simplify right side
    28,531.24x = 419,562,056.75
  5. Step 5: Solve for x
    x = 419,562,056.75/28,531.24
  6. Step 6: Final answer
    x = 14,705.36

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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.