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Finding the Fourth Proportional to 27,928.50, 38,542.07 and 15,182.54

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Solution

The fourth proportional to 27,928.50, 38,542.07 and 15,182.54 is: 20,952.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,928.50 : 38,542.07 = 15,182.54 : x
  2. Step 2: Convert to fraction form
    27,928.50/38,542.07 = 15,182.54/x
  3. Step 3: Cross multiply
    27,928.50x = 38,542.07 × 15,182.54
  4. Step 4: Simplify right side
    27,928.50x = 585,166,519.46
  5. Step 5: Solve for x
    x = 585,166,519.46/27,928.50
  6. Step 6: Final answer
    x = 20,952.31

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.