Home / 20,195.70-30,293.55-18,381.30

Finding the Fourth Proportional to 20,195.70, 30,293.55 and 18,381.30

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Solution

The fourth proportional to 20,195.70, 30,293.55 and 18,381.30 is: 27,571.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,195.70 : 30,293.55 = 18,381.30 : x
  2. Step 2: Convert to fraction form
    20,195.70/30,293.55 = 18,381.30/x
  3. Step 3: Cross multiply
    20,195.70x = 30,293.55 × 18,381.30
  4. Step 4: Simplify right side
    20,195.70x = 556,834,830.62
  5. Step 5: Solve for x
    x = 556,834,830.62/20,195.70
  6. Step 6: Final answer
    x = 27,571.95

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Similar ratio
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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.