Home / 20,772.16-31,163.18-6,732.18

Finding the Fourth Proportional to 20,772.16, 31,163.18 and 6,732.18

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Solution

The fourth proportional to 20,772.16, 31,163.18 and 6,732.18 is: 10,099.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,772.16 : 31,163.18 = 6,732.18 : x
  2. Step 2: Convert to fraction form
    20,772.16/31,163.18 = 6,732.18/x
  3. Step 3: Cross multiply
    20,772.16x = 31,163.18 × 6,732.18
  4. Step 4: Simplify right side
    20,772.16x = 209,796,137.13
  5. Step 5: Solve for x
    x = 209,796,137.13/20,772.16
  6. Step 6: Final answer
    x = 10,099.87

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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.