Home / 28,908.36-43,363.26-8,133.48

Finding the Fourth Proportional to 28,908.36, 43,363.26 and 8,133.48

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Solution

The fourth proportional to 28,908.36, 43,363.26 and 8,133.48 is: 12,200.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,908.36 : 43,363.26 = 8,133.48 : x
  2. Step 2: Convert to fraction form
    28,908.36/43,363.26 = 8,133.48/x
  3. Step 3: Cross multiply
    28,908.36x = 43,363.26 × 8,133.48
  4. Step 4: Simplify right side
    28,908.36x = 352,694,207.94
  5. Step 5: Solve for x
    x = 352,694,207.94/28,908.36
  6. Step 6: Final answer
    x = 12,200.42

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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.