Home / 39,191.56-54,083.45-21,286.18

Finding the Fourth Proportional to 39,191.56, 54,083.45 and 21,286.18

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Solution

The fourth proportional to 39,191.56, 54,083.45 and 21,286.18 is: 29,374.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,191.56 : 54,083.45 = 21,286.18 : x
  2. Step 2: Convert to fraction form
    39,191.56/54,083.45 = 21,286.18/x
  3. Step 3: Cross multiply
    39,191.56x = 54,083.45 × 21,286.18
  4. Step 4: Simplify right side
    39,191.56x = 1,151,230,172.54
  5. Step 5: Solve for x
    x = 1,151,230,172.54/39,191.56
  6. Step 6: Final answer
    x = 29,374.44

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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.