Home / 20,186.25-30,279.96-5,395.19

Finding the Fourth Proportional to 20,186.25, 30,279.96 and 5,395.19

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Solution

The fourth proportional to 20,186.25, 30,279.96 and 5,395.19 is: 8,092.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,186.25 : 30,279.96 = 5,395.19 : x
  2. Step 2: Convert to fraction form
    20,186.25/30,279.96 = 5,395.19/x
  3. Step 3: Cross multiply
    20,186.25x = 30,279.96 × 5,395.19
  4. Step 4: Simplify right side
    20,186.25x = 163,366,110.42
  5. Step 5: Solve for x
    x = 163,366,110.42/20,186.25
  6. Step 6: Final answer
    x = 8,092.94

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1.5x scale

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.