Home / 21,201.82-31,737.12-18,052.54

Finding the Fourth Proportional to 21,201.82, 31,737.12 and 18,052.54

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Solution

The fourth proportional to 21,201.82, 31,737.12 and 18,052.54 is: 27,022.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,201.82 : 31,737.12 = 18,052.54 : x
  2. Step 2: Convert to fraction form
    21,201.82/31,737.12 = 18,052.54/x
  3. Step 3: Cross multiply
    21,201.82x = 31,737.12 × 18,052.54
  4. Step 4: Simplify right side
    21,201.82x = 572,935,628.28
  5. Step 5: Solve for x
    x = 572,935,628.28/21,201.82
  6. Step 6: Final answer
    x = 27,022.95

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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.