Home / 28,757.70-43,121.93-13,161.96

Finding the Fourth Proportional to 28,757.70, 43,121.93 and 13,161.96

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Solution

The fourth proportional to 28,757.70, 43,121.93 and 13,161.96 is: 19,736.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,757.70 : 43,121.93 = 13,161.96 : x
  2. Step 2: Convert to fraction form
    28,757.70/43,121.93 = 13,161.96/x
  3. Step 3: Cross multiply
    28,757.70x = 43,121.93 × 13,161.96
  4. Step 4: Simplify right side
    28,757.70x = 567,569,051.97
  5. Step 5: Solve for x
    x = 567,569,051.97/28,757.70
  6. Step 6: Final answer
    x = 19,736.25

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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.