Home / 20,105.58-30,158.37-13,774.22

Finding the Fourth Proportional to 20,105.58, 30,158.37 and 13,774.22

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Solution

The fourth proportional to 20,105.58, 30,158.37 and 13,774.22 is: 20,661.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,105.58 : 30,158.37 = 13,774.22 : x
  2. Step 2: Convert to fraction form
    20,105.58/30,158.37 = 13,774.22/x
  3. Step 3: Cross multiply
    20,105.58x = 30,158.37 × 13,774.22
  4. Step 4: Simplify right side
    20,105.58x = 415,407,872.43
  5. Step 5: Solve for x
    x = 415,407,872.43/20,105.58
  6. Step 6: Final answer
    x = 20,661.32

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Similar ratio
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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.