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Finding the Fourth Proportional to 20,157.69, 30,250.44 and 7,010.04

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Solution

The fourth proportional to 20,157.69, 30,250.44 and 7,010.04 is: 10,519.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,157.69 : 30,250.44 = 7,010.04 : x
  2. Step 2: Convert to fraction form
    20,157.69/30,250.44 = 7,010.04/x
  3. Step 3: Cross multiply
    20,157.69x = 30,250.44 × 7,010.04
  4. Step 4: Simplify right side
    20,157.69x = 212,056,794.42
  5. Step 5: Solve for x
    x = 212,056,794.42/20,157.69
  6. Step 6: Final answer
    x = 10,519.90

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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.