Home / 20,760.64-31,134.24-6,717.67

Finding the Fourth Proportional to 20,760.64, 31,134.24 and 6,717.67

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Solution

The fourth proportional to 20,760.64, 31,134.24 and 6,717.67 is: 10,074.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,760.64 : 31,134.24 = 6,717.67 : x
  2. Step 2: Convert to fraction form
    20,760.64/31,134.24 = 6,717.67/x
  3. Step 3: Cross multiply
    20,760.64x = 31,134.24 × 6,717.67
  4. Step 4: Simplify right side
    20,760.64x = 209,149,472.19
  5. Step 5: Solve for x
    x = 209,149,472.19/20,760.64
  6. Step 6: Final answer
    x = 10,074.33

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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.