Home / 39,262.68-54,183.39-21,358.65

Finding the Fourth Proportional to 39,262.68, 54,183.39 and 21,358.65

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Solution

The fourth proportional to 39,262.68, 54,183.39 and 21,358.65 is: 29,475.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,262.68 : 54,183.39 = 21,358.65 : x
  2. Step 2: Convert to fraction form
    39,262.68/54,183.39 = 21,358.65/x
  3. Step 3: Cross multiply
    39,262.68x = 54,183.39 × 21,358.65
  4. Step 4: Simplify right side
    39,262.68x = 1,157,284,062.82
  5. Step 5: Solve for x
    x = 1,157,284,062.82/39,262.68
  6. Step 6: Final answer
    x = 29,475.42

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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.