Home / 20,826.38-31,241.27-6,782.67

Finding the Fourth Proportional to 20,826.38, 31,241.27 and 6,782.67

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Solution

The fourth proportional to 20,826.38, 31,241.27 and 6,782.67 is: 10,174.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,826.38 : 31,241.27 = 6,782.67 : x
  2. Step 2: Convert to fraction form
    20,826.38/31,241.27 = 6,782.67/x
  3. Step 3: Cross multiply
    20,826.38x = 31,241.27 × 6,782.67
  4. Step 4: Simplify right side
    20,826.38x = 211,899,241.75
  5. Step 5: Solve for x
    x = 211,899,241.75/20,826.38
  6. Step 6: Final answer
    x = 10,174.56

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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.