Home / 19,874.22-29,805.39-14,310.78

Finding the Fourth Proportional to 19,874.22, 29,805.39 and 14,310.78

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Solution

The fourth proportional to 19,874.22, 29,805.39 and 14,310.78 is: 21,461.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,874.22 : 29,805.39 = 14,310.78 : x
  2. Step 2: Convert to fraction form
    19,874.22/29,805.39 = 14,310.78/x
  3. Step 3: Cross multiply
    19,874.22x = 29,805.39 × 14,310.78
  4. Step 4: Simplify right side
    19,874.22x = 426,538,379.10
  5. Step 5: Solve for x
    x = 426,538,379.10/19,874.22
  6. Step 6: Final answer
    x = 21,461.89

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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.