Home / 20,756.94-31,134.15-6,716.67

Finding the Fourth Proportional to 20,756.94, 31,134.15 and 6,716.67

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Solution

The fourth proportional to 20,756.94, 31,134.15 and 6,716.67 is: 10,074.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,756.94 : 31,134.15 = 6,716.67 : x
  2. Step 2: Convert to fraction form
    20,756.94/31,134.15 = 6,716.67/x
  3. Step 3: Cross multiply
    20,756.94x = 31,134.15 × 6,716.67
  4. Step 4: Simplify right side
    20,756.94x = 209,117,811.28
  5. Step 5: Solve for x
    x = 209,117,811.28/20,756.94
  6. Step 6: Final answer
    x = 10,074.60

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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.