Home / 39,324.92-54,269.21-21,419.88

Finding the Fourth Proportional to 39,324.92, 54,269.21 and 21,419.88

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Solution

The fourth proportional to 39,324.92, 54,269.21 and 21,419.88 is: 29,559.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,324.92 : 54,269.21 = 21,419.88 : x
  2. Step 2: Convert to fraction form
    39,324.92/54,269.21 = 21,419.88/x
  3. Step 3: Cross multiply
    39,324.92x = 54,269.21 × 21,419.88
  4. Step 4: Simplify right side
    39,324.92x = 1,162,439,815.93
  5. Step 5: Solve for x
    x = 1,162,439,815.93/39,324.92
  6. Step 6: Final answer
    x = 29,559.88

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1.5x scale

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.