Home / 43,760.20-65,564.70-20,338.60

Finding the Fourth Proportional to 43,760.20, 65,564.70 and 20,338.60

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Solution

The fourth proportional to 43,760.20, 65,564.70 and 20,338.60 is: 30,472.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,760.20 : 65,564.70 = 20,338.60 : x
  2. Step 2: Convert to fraction form
    43,760.20/65,564.70 = 20,338.60/x
  3. Step 3: Cross multiply
    43,760.20x = 65,564.70 × 20,338.60
  4. Step 4: Simplify right side
    43,760.20x = 1,333,494,207.42
  5. Step 5: Solve for x
    x = 1,333,494,207.42/43,760.20
  6. Step 6: Final answer
    x = 30,472.76

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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.