Home / 20,527.66-30,791.31-6,487.69

Finding the Fourth Proportional to 20,527.66, 30,791.31 and 6,487.69

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Solution

The fourth proportional to 20,527.66, 30,791.31 and 6,487.69 is: 9,731.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,527.66 : 30,791.31 = 6,487.69 : x
  2. Step 2: Convert to fraction form
    20,527.66/30,791.31 = 6,487.69/x
  3. Step 3: Cross multiply
    20,527.66x = 30,791.31 × 6,487.69
  4. Step 4: Simplify right side
    20,527.66x = 199,764,473.97
  5. Step 5: Solve for x
    x = 199,764,473.97/20,527.66
  6. Step 6: Final answer
    x = 9,731.48

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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.