Home / 20,147.44-30,220.24-7,000.84

Finding the Fourth Proportional to 20,147.44, 30,220.24 and 7,000.84

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Solution

The fourth proportional to 20,147.44, 30,220.24 and 7,000.84 is: 10,500.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,147.44 : 30,220.24 = 7,000.84 : x
  2. Step 2: Convert to fraction form
    20,147.44/30,220.24 = 7,000.84/x
  3. Step 3: Cross multiply
    20,147.44x = 30,220.24 × 7,000.84
  4. Step 4: Simplify right side
    20,147.44x = 211,567,065.00
  5. Step 5: Solve for x
    x = 211,567,065.00/20,147.44
  6. Step 6: Final answer
    x = 10,500.94

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Half scale
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Double scale
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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.