Home / 20,272.77-30,396.74-7,126.65

Finding the Fourth Proportional to 20,272.77, 30,396.74 and 7,126.65

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Solution

The fourth proportional to 20,272.77, 30,396.74 and 7,126.65 is: 10,685.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,272.77 : 30,396.74 = 7,126.65 : x
  2. Step 2: Convert to fraction form
    20,272.77/30,396.74 = 7,126.65/x
  3. Step 3: Cross multiply
    20,272.77x = 30,396.74 × 7,126.65
  4. Step 4: Simplify right side
    20,272.77x = 216,626,891.49
  5. Step 5: Solve for x
    x = 216,626,891.49/20,272.77
  6. Step 6: Final answer
    x = 10,685.61

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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.