Home / 21,961.98-30,309.92-14,414.40

Finding the Fourth Proportional to 21,961.98, 30,309.92 and 14,414.40

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Solution

The fourth proportional to 21,961.98, 30,309.92 and 14,414.40 is: 19,893.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,961.98 : 30,309.92 = 14,414.40 : x
  2. Step 2: Convert to fraction form
    21,961.98/30,309.92 = 14,414.40/x
  3. Step 3: Cross multiply
    21,961.98x = 30,309.92 × 14,414.40
  4. Step 4: Simplify right side
    21,961.98x = 436,899,310.85
  5. Step 5: Solve for x
    x = 436,899,310.85/21,961.98
  6. Step 6: Final answer
    x = 19,893.44

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.