Home / 39,772.75-54,884.99-21,867.63

Finding the Fourth Proportional to 39,772.75, 54,884.99 and 21,867.63

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Solution

The fourth proportional to 39,772.75, 54,884.99 and 21,867.63 is: 30,176.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,772.75 : 54,884.99 = 21,867.63 : x
  2. Step 2: Convert to fraction form
    39,772.75/54,884.99 = 21,867.63/x
  3. Step 3: Cross multiply
    39,772.75x = 54,884.99 × 21,867.63
  4. Step 4: Simplify right side
    39,772.75x = 1,200,204,653.87
  5. Step 5: Solve for x
    x = 1,200,204,653.87/39,772.75
  6. Step 6: Final answer
    x = 30,176.56

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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.