Home / 27,662.11-38,168.75-15,724.73

Finding the Fourth Proportional to 27,662.11, 38,168.75 and 15,724.73

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Solution

The fourth proportional to 27,662.11, 38,168.75 and 15,724.73 is: 21,697.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,662.11 : 38,168.75 = 15,724.73 : x
  2. Step 2: Convert to fraction form
    27,662.11/38,168.75 = 15,724.73/x
  3. Step 3: Cross multiply
    27,662.11x = 38,168.75 × 15,724.73
  4. Step 4: Simplify right side
    27,662.11x = 600,193,422.92
  5. Step 5: Solve for x
    x = 600,193,422.92/27,662.11
  6. Step 6: Final answer
    x = 21,697.31

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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.