Home / 28,791.45-43,196.40-18,270.32

Finding the Fourth Proportional to 28,791.45, 43,196.40 and 18,270.32

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Solution

The fourth proportional to 28,791.45, 43,196.40 and 18,270.32 is: 27,411.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,791.45 : 43,196.40 = 18,270.32 : x
  2. Step 2: Convert to fraction form
    28,791.45/43,196.40 = 18,270.32/x
  3. Step 3: Cross multiply
    28,791.45x = 43,196.40 × 18,270.32
  4. Step 4: Simplify right side
    28,791.45x = 789,211,834.87
  5. Step 5: Solve for x
    x = 789,211,834.87/28,791.45
  6. Step 6: Final answer
    x = 27,411.33

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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.