Home / 20,161.26-30,177.18-10,777.82

Finding the Fourth Proportional to 20,161.26, 30,177.18 and 10,777.82

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Solution

The fourth proportional to 20,161.26, 30,177.18 and 10,777.82 is: 16,132.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,161.26 : 30,177.18 = 10,777.82 : x
  2. Step 2: Convert to fraction form
    20,161.26/30,177.18 = 10,777.82/x
  3. Step 3: Cross multiply
    20,161.26x = 30,177.18 × 10,777.82
  4. Step 4: Simplify right side
    20,161.26x = 325,244,063.26
  5. Step 5: Solve for x
    x = 325,244,063.26/20,161.26
  6. Step 6: Final answer
    x = 16,132.13

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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.