Home / 20,853.62-31,281.94-5,862.95

Finding the Fourth Proportional to 20,853.62, 31,281.94 and 5,862.95

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Solution

The fourth proportional to 20,853.62, 31,281.94 and 5,862.95 is: 8,794.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,853.62 : 31,281.94 = 5,862.95 : x
  2. Step 2: Convert to fraction form
    20,853.62/31,281.94 = 5,862.95/x
  3. Step 3: Cross multiply
    20,853.62x = 31,281.94 × 5,862.95
  4. Step 4: Simplify right side
    20,853.62x = 183,404,450.12
  5. Step 5: Solve for x
    x = 183,404,450.12/20,853.62
  6. Step 6: Final answer
    x = 8,794.85

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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.