Home / 21,201.94-29,257.36-11,770.50

Finding the Fourth Proportional to 21,201.94, 29,257.36 and 11,770.50

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Solution

The fourth proportional to 21,201.94, 29,257.36 and 11,770.50 is: 16,242.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,201.94 : 29,257.36 = 11,770.50 : x
  2. Step 2: Convert to fraction form
    21,201.94/29,257.36 = 11,770.50/x
  3. Step 3: Cross multiply
    21,201.94x = 29,257.36 × 11,770.50
  4. Step 4: Simplify right side
    21,201.94x = 344,373,755.88
  5. Step 5: Solve for x
    x = 344,373,755.88/21,201.94
  6. Step 6: Final answer
    x = 16,242.56

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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.