Home / 20,177.36-30,227.88-11,418.56

Finding the Fourth Proportional to 20,177.36, 30,227.88 and 11,418.56

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Solution

The fourth proportional to 20,177.36, 30,227.88 and 11,418.56 is: 17,106.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,177.36 : 30,227.88 = 11,418.56 : x
  2. Step 2: Convert to fraction form
    20,177.36/30,227.88 = 11,418.56/x
  3. Step 3: Cross multiply
    20,177.36x = 30,227.88 × 11,418.56
  4. Step 4: Simplify right side
    20,177.36x = 345,158,861.45
  5. Step 5: Solve for x
    x = 345,158,861.45/20,177.36
  6. Step 6: Final answer
    x = 17,106.24

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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.