Home / 39,192.30-54,084.27-21,286.71

Finding the Fourth Proportional to 39,192.30, 54,084.27 and 21,286.71

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Solution

The fourth proportional to 39,192.30, 54,084.27 and 21,286.71 is: 29,375.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,192.30 : 54,084.27 = 21,286.71 : x
  2. Step 2: Convert to fraction form
    39,192.30/54,084.27 = 21,286.71/x
  3. Step 3: Cross multiply
    39,192.30x = 54,084.27 × 21,286.71
  4. Step 4: Simplify right side
    39,192.30x = 1,151,276,171.05
  5. Step 5: Solve for x
    x = 1,151,276,171.05/39,192.30
  6. Step 6: Final answer
    x = 29,375.06

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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.