Home / 39,191.19-54,084.24-21,286.55

Finding the Fourth Proportional to 39,191.19, 54,084.24 and 21,286.55

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Solution

The fourth proportional to 39,191.19, 54,084.24 and 21,286.55 is: 29,375.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,191.19 : 54,084.24 = 21,286.55 : x
  2. Step 2: Convert to fraction form
    39,191.19/54,084.24 = 21,286.55/x
  3. Step 3: Cross multiply
    39,191.19x = 54,084.24 × 21,286.55
  4. Step 4: Simplify right side
    39,191.19x = 1,151,266,608.55
  5. Step 5: Solve for x
    x = 1,151,266,608.55/39,191.19
  6. Step 6: Final answer
    x = 29,375.65

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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.