Home / 21,974.40-32,911.92-12,600

Finding the Fourth Proportional to 21,974.40, 32,911.92 and 12,600

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Solution

The fourth proportional to 21,974.40, 32,911.92 and 12,600 is: 18,871.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,974.40 : 32,911.92 = 12,600 : x
  2. Step 2: Convert to fraction form
    21,974.40/32,911.92 = 12,600/x
  3. Step 3: Cross multiply
    21,974.40x = 32,911.92 × 12,600
  4. Step 4: Simplify right side
    21,974.40x = 414,690,192
  5. Step 5: Solve for x
    x = 414,690,192/21,974.40
  6. Step 6: Final answer
    x = 18,871.51

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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.