Home / 25,974.56-38,989.40-21,103.02

Finding the Fourth Proportional to 25,974.56, 38,989.40 and 21,103.02

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Solution

The fourth proportional to 25,974.56, 38,989.40 and 21,103.02 is: 31,676.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,974.56 : 38,989.40 = 21,103.02 : x
  2. Step 2: Convert to fraction form
    25,974.56/38,989.40 = 21,103.02/x
  3. Step 3: Cross multiply
    25,974.56x = 38,989.40 × 21,103.02
  4. Step 4: Simplify right side
    25,974.56x = 822,794,087.99
  5. Step 5: Solve for x
    x = 822,794,087.99/25,974.56
  6. Step 6: Final answer
    x = 31,676.92

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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.