Home / 28,912.26-43,369.89-8,137.38

Finding the Fourth Proportional to 28,912.26, 43,369.89 and 8,137.38

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Solution

The fourth proportional to 28,912.26, 43,369.89 and 8,137.38 is: 12,206.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,912.26 : 43,369.89 = 8,137.38 : x
  2. Step 2: Convert to fraction form
    28,912.26/43,369.89 = 8,137.38/x
  3. Step 3: Cross multiply
    28,912.26x = 43,369.89 × 8,137.38
  4. Step 4: Simplify right side
    28,912.26x = 352,917,275.49
  5. Step 5: Solve for x
    x = 352,917,275.49/28,912.26
  6. Step 6: Final answer
    x = 12,206.49

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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.