Home / 21,244.14-31,826.25-12,452.94

Finding the Fourth Proportional to 21,244.14, 31,826.25 and 12,452.94

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Solution

The fourth proportional to 21,244.14, 31,826.25 and 12,452.94 is: 18,655.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,244.14 : 31,826.25 = 12,452.94 : x
  2. Step 2: Convert to fraction form
    21,244.14/31,826.25 = 12,452.94/x
  3. Step 3: Cross multiply
    21,244.14x = 31,826.25 × 12,452.94
  4. Step 4: Simplify right side
    21,244.14x = 396,330,381.68
  5. Step 5: Solve for x
    x = 396,330,381.68/21,244.14
  6. Step 6: Final answer
    x = 18,655.99

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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.