Home / 39,281.25-54,207.67-21,375.95

Finding the Fourth Proportional to 39,281.25, 54,207.67 and 21,375.95

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Solution

The fourth proportional to 39,281.25, 54,207.67 and 21,375.95 is: 29,498.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,281.25 : 54,207.67 = 21,375.95 : x
  2. Step 2: Convert to fraction form
    39,281.25/54,207.67 = 21,375.95/x
  3. Step 3: Cross multiply
    39,281.25x = 54,207.67 × 21,375.95
  4. Step 4: Simplify right side
    39,281.25x = 1,158,740,443.54
  5. Step 5: Solve for x
    x = 1,158,740,443.54/39,281.25
  6. Step 6: Final answer
    x = 29,498.56

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.