Home / 28,936.26-43,405.88-8,161.38

Finding the Fourth Proportional to 28,936.26, 43,405.88 and 8,161.38

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Solution

The fourth proportional to 28,936.26, 43,405.88 and 8,161.38 is: 12,242.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,936.26 : 43,405.88 = 8,161.38 : x
  2. Step 2: Convert to fraction form
    28,936.26/43,405.88 = 8,161.38/x
  3. Step 3: Cross multiply
    28,936.26x = 43,405.88 × 8,161.38
  4. Step 4: Simplify right side
    28,936.26x = 354,251,840.11
  5. Step 5: Solve for x
    x = 354,251,840.11/28,936.26
  6. Step 6: Final answer
    x = 12,242.49

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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.