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Finding the Fourth Proportional to 39,239, 54,137.85 and 22,240.52

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Solution

The fourth proportional to 39,239, 54,137.85 and 22,240.52 is: 30,685.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,239 : 54,137.85 = 22,240.52 : x
  2. Step 2: Convert to fraction form
    39,239/54,137.85 = 22,240.52/x
  3. Step 3: Cross multiply
    39,239x = 54,137.85 × 22,240.52
  4. Step 4: Simplify right side
    39,239x = 1,204,053,935.68
  5. Step 5: Solve for x
    x = 1,204,053,935.68/39,239
  6. Step 6: Final answer
    x = 30,685.13

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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.