Home / 20,758.26-31,137.38-6,907.26

Finding the Fourth Proportional to 20,758.26, 31,137.38 and 6,907.26

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Solution

The fourth proportional to 20,758.26, 31,137.38 and 6,907.26 is: 10,360.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,758.26 : 31,137.38 = 6,907.26 : x
  2. Step 2: Convert to fraction form
    20,758.26/31,137.38 = 6,907.26/x
  3. Step 3: Cross multiply
    20,758.26x = 31,137.38 × 6,907.26
  4. Step 4: Simplify right side
    20,758.26x = 215,073,979.38
  5. Step 5: Solve for x
    x = 215,073,979.38/20,758.26
  6. Step 6: Final answer
    x = 10,360.89

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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.