Home / 21,399.68-32,103.11-7,359.14

Finding the Fourth Proportional to 21,399.68, 32,103.11 and 7,359.14

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Solution

The fourth proportional to 21,399.68, 32,103.11 and 7,359.14 is: 11,039.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,399.68 : 32,103.11 = 7,359.14 : x
  2. Step 2: Convert to fraction form
    21,399.68/32,103.11 = 7,359.14/x
  3. Step 3: Cross multiply
    21,399.68x = 32,103.11 × 7,359.14
  4. Step 4: Simplify right side
    21,399.68x = 236,251,379.58
  5. Step 5: Solve for x
    x = 236,251,379.58/21,399.68
  6. Step 6: Final answer
    x = 11,039.95

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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.