Home / 39,772.82-54,882.97-21,867.47

Finding the Fourth Proportional to 39,772.82, 54,882.97 and 21,867.47

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Solution

The fourth proportional to 39,772.82, 54,882.97 and 21,867.47 is: 30,175.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,772.82 : 54,882.97 = 21,867.47 : x
  2. Step 2: Convert to fraction form
    39,772.82/54,882.97 = 21,867.47/x
  3. Step 3: Cross multiply
    39,772.82x = 54,882.97 × 21,867.47
  4. Step 4: Simplify right side
    39,772.82x = 1,200,151,576.71
  5. Step 5: Solve for x
    x = 1,200,151,576.71/39,772.82
  6. Step 6: Final answer
    x = 30,175.17

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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.