Home / 20,134.26-30,213.27-7,664.79

Finding the Fourth Proportional to 20,134.26, 30,213.27 and 7,664.79

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Solution

The fourth proportional to 20,134.26, 30,213.27 and 7,664.79 is: 11,501.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,134.26 : 30,213.27 = 7,664.79 : x
  2. Step 2: Convert to fraction form
    20,134.26/30,213.27 = 7,664.79/x
  3. Step 3: Cross multiply
    20,134.26x = 30,213.27 × 7,664.79
  4. Step 4: Simplify right side
    20,134.26x = 231,578,369.76
  5. Step 5: Solve for x
    x = 231,578,369.76/20,134.26
  6. Step 6: Final answer
    x = 11,501.71

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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.