Home / 28,717.88-43,105.99-18,161.96

Finding the Fourth Proportional to 28,717.88, 43,105.99 and 18,161.96

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Solution

The fourth proportional to 28,717.88, 43,105.99 and 18,161.96 is: 27,261.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,717.88 : 43,105.99 = 18,161.96 : x
  2. Step 2: Convert to fraction form
    28,717.88/43,105.99 = 18,161.96/x
  3. Step 3: Cross multiply
    28,717.88x = 43,105.99 × 18,161.96
  4. Step 4: Simplify right side
    28,717.88x = 782,889,328.50
  5. Step 5: Solve for x
    x = 782,889,328.50/28,717.88
  6. Step 6: Final answer
    x = 27,261.39

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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.