Home / 21,200.31-29,257.43-11,768.94

Finding the Fourth Proportional to 21,200.31, 29,257.43 and 11,768.94

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Solution

The fourth proportional to 21,200.31, 29,257.43 and 11,768.94 is: 16,241.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,200.31 : 29,257.43 = 11,768.94 : x
  2. Step 2: Convert to fraction form
    21,200.31/29,257.43 = 11,768.94/x
  3. Step 3: Cross multiply
    21,200.31x = 29,257.43 × 11,768.94
  4. Step 4: Simplify right side
    21,200.31x = 344,328,938.22
  5. Step 5: Solve for x
    x = 344,328,938.22/21,200.31
  6. Step 6: Final answer
    x = 16,241.69

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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.