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Finding the Fourth Proportional to 28,914.02, 43,371.02 and 8,137.52

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Solution

The fourth proportional to 28,914.02, 43,371.02 and 8,137.52 is: 12,206.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,914.02 : 43,371.02 = 8,137.52 : x
  2. Step 2: Convert to fraction form
    28,914.02/43,371.02 = 8,137.52/x
  3. Step 3: Cross multiply
    28,914.02x = 43,371.02 × 8,137.52
  4. Step 4: Simplify right side
    28,914.02x = 352,932,542.67
  5. Step 5: Solve for x
    x = 352,932,542.67/28,914.02
  6. Step 6: Final answer
    x = 12,206.28

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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.