Home / 21,461.28-32,198.13-8,974.86

Finding the Fourth Proportional to 21,461.28, 32,198.13 and 8,974.86

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Solution

The fourth proportional to 21,461.28, 32,198.13 and 8,974.86 is: 13,464.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,461.28 : 32,198.13 = 8,974.86 : x
  2. Step 2: Convert to fraction form
    21,461.28/32,198.13 = 8,974.86/x
  3. Step 3: Cross multiply
    21,461.28x = 32,198.13 × 8,974.86
  4. Step 4: Simplify right side
    21,461.28x = 288,973,709.01
  5. Step 5: Solve for x
    x = 288,973,709.01/21,461.28
  6. Step 6: Final answer
    x = 13,464.89

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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.