Home / 47,974.45-71,992.81-21,679.42

Finding the Fourth Proportional to 47,974.45, 71,992.81 and 21,679.42

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Solution

The fourth proportional to 47,974.45, 71,992.81 and 21,679.42 is: 32,533.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    47,974.45 : 71,992.81 = 21,679.42 : x
  2. Step 2: Convert to fraction form
    47,974.45/71,992.81 = 21,679.42/x
  3. Step 3: Cross multiply
    47,974.45x = 71,992.81 × 21,679.42
  4. Step 4: Simplify right side
    47,974.45x = 1,560,762,364.97
  5. Step 5: Solve for x
    x = 1,560,762,364.97/47,974.45
  6. Step 6: Final answer
    x = 32,533.20

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.