Home / 20,527.99-30,791.80-6,488.02

Finding the Fourth Proportional to 20,527.99, 30,791.80 and 6,488.02

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Solution

The fourth proportional to 20,527.99, 30,791.80 and 6,488.02 is: 9,731.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,527.99 : 30,791.80 = 6,488.02 : x
  2. Step 2: Convert to fraction form
    20,527.99/30,791.80 = 6,488.02/x
  3. Step 3: Cross multiply
    20,527.99x = 30,791.80 × 6,488.02
  4. Step 4: Simplify right side
    20,527.99x = 199,777,721.04
  5. Step 5: Solve for x
    x = 199,777,721.04/20,527.99
  6. Step 6: Final answer
    x = 9,731.97

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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.