Home / 20,960.64-31,441.82-6,730.56

Finding the Fourth Proportional to 20,960.64, 31,441.82 and 6,730.56

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Solution

The fourth proportional to 20,960.64, 31,441.82 and 6,730.56 is: 10,096.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,960.64 : 31,441.82 = 6,730.56 : x
  2. Step 2: Convert to fraction form
    20,960.64/31,441.82 = 6,730.56/x
  3. Step 3: Cross multiply
    20,960.64x = 31,441.82 × 6,730.56
  4. Step 4: Simplify right side
    20,960.64x = 211,621,022.37
  5. Step 5: Solve for x
    x = 211,621,022.37/20,960.64
  6. Step 6: Final answer
    x = 10,096.11

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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.