Home / 21,917.39-32,824.14-12,562.49

Finding the Fourth Proportional to 21,917.39, 32,824.14 and 12,562.49

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Solution

The fourth proportional to 21,917.39, 32,824.14 and 12,562.49 is: 18,813.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,917.39 : 32,824.14 = 12,562.49 : x
  2. Step 2: Convert to fraction form
    21,917.39/32,824.14 = 12,562.49/x
  3. Step 3: Cross multiply
    21,917.39x = 32,824.14 × 12,562.49
  4. Step 4: Simplify right side
    21,917.39x = 412,352,965.46
  5. Step 5: Solve for x
    x = 412,352,965.46/21,917.39
  6. Step 6: Final answer
    x = 18,813.97

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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.