Home / 20,725.17-31,083.39-6,686.52

Finding the Fourth Proportional to 20,725.17, 31,083.39 and 6,686.52

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Solution

The fourth proportional to 20,725.17, 31,083.39 and 6,686.52 is: 10,028.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,725.17 : 31,083.39 = 6,686.52 : x
  2. Step 2: Convert to fraction form
    20,725.17/31,083.39 = 6,686.52/x
  3. Step 3: Cross multiply
    20,725.17x = 31,083.39 × 6,686.52
  4. Step 4: Simplify right side
    20,725.17x = 207,839,708.90
  5. Step 5: Solve for x
    x = 207,839,708.90/20,725.17
  6. Step 6: Final answer
    x = 10,028.37

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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.