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Finding the Fourth Proportional to 29,231.80, 43,847.70 and 19,900.60

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Solution

The fourth proportional to 29,231.80, 43,847.70 and 19,900.60 is: 29,850.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,231.80 : 43,847.70 = 19,900.60 : x
  2. Step 2: Convert to fraction form
    29,231.80/43,847.70 = 19,900.60/x
  3. Step 3: Cross multiply
    29,231.80x = 43,847.70 × 19,900.60
  4. Step 4: Simplify right side
    29,231.80x = 872,595,538.62
  5. Step 5: Solve for x
    x = 872,595,538.62/29,231.80
  6. Step 6: Final answer
    x = 29,850.90

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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.