Home / 28,898.25-43,347.38-8,121.75

Finding the Fourth Proportional to 28,898.25, 43,347.38 and 8,121.75

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Solution

The fourth proportional to 28,898.25, 43,347.38 and 8,121.75 is: 12,182.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,898.25 : 43,347.38 = 8,121.75 : x
  2. Step 2: Convert to fraction form
    28,898.25/43,347.38 = 8,121.75/x
  3. Step 3: Cross multiply
    28,898.25x = 43,347.38 × 8,121.75
  4. Step 4: Simplify right side
    28,898.25x = 352,056,542.91
  5. Step 5: Solve for x
    x = 352,056,542.91/28,898.25
  6. Step 6: Final answer
    x = 12,182.63

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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.