Home / 28,914.21-43,371.27-8,137.71

Finding the Fourth Proportional to 28,914.21, 43,371.27 and 8,137.71

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Solution

The fourth proportional to 28,914.21, 43,371.27 and 8,137.71 is: 12,206.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,914.21 : 43,371.27 = 8,137.71 : x
  2. Step 2: Convert to fraction form
    28,914.21/43,371.27 = 8,137.71/x
  3. Step 3: Cross multiply
    28,914.21x = 43,371.27 × 8,137.71
  4. Step 4: Simplify right side
    28,914.21x = 352,942,817.59
  5. Step 5: Solve for x
    x = 352,942,817.59/28,914.21
  6. Step 6: Final answer
    x = 12,206.55

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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.