Home / 20,851.62-31,278.94-5,860.95

Finding the Fourth Proportional to 20,851.62, 31,278.94 and 5,860.95

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Solution

The fourth proportional to 20,851.62, 31,278.94 and 5,860.95 is: 8,791.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,851.62 : 31,278.94 = 5,860.95 : x
  2. Step 2: Convert to fraction form
    20,851.62/31,278.94 = 5,860.95/x
  3. Step 3: Cross multiply
    20,851.62x = 31,278.94 × 5,860.95
  4. Step 4: Simplify right side
    20,851.62x = 183,324,303.39
  5. Step 5: Solve for x
    x = 183,324,303.39/20,851.62
  6. Step 6: Final answer
    x = 8,791.85

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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.