Home / 39,981.44-55,174-22,076.08

Finding the Fourth Proportional to 39,981.44, 55,174 and 22,076.08

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Solution

The fourth proportional to 39,981.44, 55,174 and 22,076.08 is: 30,464.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,981.44 : 55,174 = 22,076.08 : x
  2. Step 2: Convert to fraction form
    39,981.44/55,174 = 22,076.08/x
  3. Step 3: Cross multiply
    39,981.44x = 55,174 × 22,076.08
  4. Step 4: Simplify right side
    39,981.44x = 1,218,025,637.92
  5. Step 5: Solve for x
    x = 1,218,025,637.92/39,981.44
  6. Step 6: Final answer
    x = 30,464.78

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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.