Home / 20,798.21-31,194.38-6,758.42

Finding the Fourth Proportional to 20,798.21, 31,194.38 and 6,758.42

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Solution

The fourth proportional to 20,798.21, 31,194.38 and 6,758.42 is: 10,136.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,798.21 : 31,194.38 = 6,758.42 : x
  2. Step 2: Convert to fraction form
    20,798.21/31,194.38 = 6,758.42/x
  3. Step 3: Cross multiply
    20,798.21x = 31,194.38 × 6,758.42
  4. Step 4: Simplify right side
    20,798.21x = 210,824,531.92
  5. Step 5: Solve for x
    x = 210,824,531.92/20,798.21
  6. Step 6: Final answer
    x = 10,136.67

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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.