Home / 20,572.04-30,862.94-6,721

Finding the Fourth Proportional to 20,572.04, 30,862.94 and 6,721

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Solution

The fourth proportional to 20,572.04, 30,862.94 and 6,721 is: 10,083.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,572.04 : 30,862.94 = 6,721 : x
  2. Step 2: Convert to fraction form
    20,572.04/30,862.94 = 6,721/x
  3. Step 3: Cross multiply
    20,572.04x = 30,862.94 × 6,721
  4. Step 4: Simplify right side
    20,572.04x = 207,429,819.74
  5. Step 5: Solve for x
    x = 207,429,819.74/20,572.04
  6. Step 6: Final answer
    x = 10,083.09

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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.