Home / 39,154.56-54,033.68-21,249.72

Finding the Fourth Proportional to 39,154.56, 54,033.68 and 21,249.72

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Solution

The fourth proportional to 39,154.56, 54,033.68 and 21,249.72 is: 29,324.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,154.56 : 54,033.68 = 21,249.72 : x
  2. Step 2: Convert to fraction form
    39,154.56/54,033.68 = 21,249.72/x
  3. Step 3: Cross multiply
    39,154.56x = 54,033.68 × 21,249.72
  4. Step 4: Simplify right side
    39,154.56x = 1,148,200,570.57
  5. Step 5: Solve for x
    x = 1,148,200,570.57/39,154.56
  6. Step 6: Final answer
    x = 29,324.82

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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.