Home / 20,575.24-30,866.06-6,721

Finding the Fourth Proportional to 20,575.24, 30,866.06 and 6,721

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Solution

The fourth proportional to 20,575.24, 30,866.06 and 6,721 is: 10,082.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,575.24 : 30,866.06 = 6,721 : x
  2. Step 2: Convert to fraction form
    20,575.24/30,866.06 = 6,721/x
  3. Step 3: Cross multiply
    20,575.24x = 30,866.06 × 6,721
  4. Step 4: Simplify right side
    20,575.24x = 207,450,789.26
  5. Step 5: Solve for x
    x = 207,450,789.26/20,575.24
  6. Step 6: Final answer
    x = 10,082.55

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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.