Home / 20,801.59-31,205.32-6,757.12

Finding the Fourth Proportional to 20,801.59, 31,205.32 and 6,757.12

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Solution

The fourth proportional to 20,801.59, 31,205.32 and 6,757.12 is: 10,136.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,801.59 : 31,205.32 = 6,757.12 : x
  2. Step 2: Convert to fraction form
    20,801.59/31,205.32 = 6,757.12/x
  3. Step 3: Cross multiply
    20,801.59x = 31,205.32 × 6,757.12
  4. Step 4: Simplify right side
    20,801.59x = 210,858,091.88
  5. Step 5: Solve for x
    x = 210,858,091.88/20,801.59
  6. Step 6: Final answer
    x = 10,136.63

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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.