Home / 39,705.20-54,793.29-21,801.37

Finding the Fourth Proportional to 39,705.20, 54,793.29 and 21,801.37

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Solution

The fourth proportional to 39,705.20, 54,793.29 and 21,801.37 is: 30,085.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,705.20 : 54,793.29 = 21,801.37 : x
  2. Step 2: Convert to fraction form
    39,705.20/54,793.29 = 21,801.37/x
  3. Step 3: Cross multiply
    39,705.20x = 54,793.29 × 21,801.37
  4. Step 4: Simplify right side
    39,705.20x = 1,194,568,788.81
  5. Step 5: Solve for x
    x = 1,194,568,788.81/39,705.20
  6. Step 6: Final answer
    x = 30,085.95

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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.