Home / 28,190.06-38,884.68-18,131.62

Finding the Fourth Proportional to 28,190.06, 38,884.68 and 18,131.62

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Solution

The fourth proportional to 28,190.06, 38,884.68 and 18,131.62 is: 25,010.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,190.06 : 38,884.68 = 18,131.62 : x
  2. Step 2: Convert to fraction form
    28,190.06/38,884.68 = 18,131.62/x
  3. Step 3: Cross multiply
    28,190.06x = 38,884.68 × 18,131.62
  4. Step 4: Simplify right side
    28,190.06x = 705,042,241.58
  5. Step 5: Solve for x
    x = 705,042,241.58/28,190.06
  6. Step 6: Final answer
    x = 25,010.31

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.