Home / 39,578.74-54,618.66-21,674.83

Finding the Fourth Proportional to 39,578.74, 54,618.66 and 21,674.83

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Solution

The fourth proportional to 39,578.74, 54,618.66 and 21,674.83 is: 29,911.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,578.74 : 54,618.66 = 21,674.83 : x
  2. Step 2: Convert to fraction form
    39,578.74/54,618.66 = 21,674.83/x
  3. Step 3: Cross multiply
    39,578.74x = 54,618.66 × 21,674.83
  4. Step 4: Simplify right side
    39,578.74x = 1,183,850,170.33
  5. Step 5: Solve for x
    x = 1,183,850,170.33/39,578.74
  6. Step 6: Final answer
    x = 29,911.26

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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.