Home / 20,321.58-30,482.37-8,626.59

Finding the Fourth Proportional to 20,321.58, 30,482.37 and 8,626.59

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Solution

The fourth proportional to 20,321.58, 30,482.37 and 8,626.59 is: 12,939.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,321.58 : 30,482.37 = 8,626.59 : x
  2. Step 2: Convert to fraction form
    20,321.58/30,482.37 = 8,626.59/x
  3. Step 3: Cross multiply
    20,321.58x = 30,482.37 × 8,626.59
  4. Step 4: Simplify right side
    20,321.58x = 262,958,908.22
  5. Step 5: Solve for x
    x = 262,958,908.22/20,321.58
  6. Step 6: Final answer
    x = 12,939.89

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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.