Home / 28,778.82-43,187.67-11,246.46

Finding the Fourth Proportional to 28,778.82, 43,187.67 and 11,246.46

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Solution

The fourth proportional to 28,778.82, 43,187.67 and 11,246.46 is: 16,877.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,778.82 : 43,187.67 = 11,246.46 : x
  2. Step 2: Convert to fraction form
    28,778.82/43,187.67 = 11,246.46/x
  3. Step 3: Cross multiply
    28,778.82x = 43,187.67 × 11,246.46
  4. Step 4: Simplify right side
    28,778.82x = 485,708,403.15
  5. Step 5: Solve for x
    x = 485,708,403.15/28,778.82
  6. Step 6: Final answer
    x = 16,877.29

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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.