Home / 20,150.20-30,226.74-7,000.92

Finding the Fourth Proportional to 20,150.20, 30,226.74 and 7,000.92

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Solution

The fourth proportional to 20,150.20, 30,226.74 and 7,000.92 is: 10,501.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,150.20 : 30,226.74 = 7,000.92 : x
  2. Step 2: Convert to fraction form
    20,150.20/30,226.74 = 7,000.92/x
  3. Step 3: Cross multiply
    20,150.20x = 30,226.74 × 7,000.92
  4. Step 4: Simplify right side
    20,150.20x = 211,614,988.60
  5. Step 5: Solve for x
    x = 211,614,988.60/20,150.20
  6. Step 6: Final answer
    x = 10,501.88

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Half scale
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Double scale
Find fourth proportional to 20,151.20, 30,228.24 and 7,001.92
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.