Home / 21,098.31-29,115.86-11,667.03

Finding the Fourth Proportional to 21,098.31, 29,115.86 and 11,667.03

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Solution

The fourth proportional to 21,098.31, 29,115.86 and 11,667.03 is: 16,100.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,098.31 : 29,115.86 = 11,667.03 : x
  2. Step 2: Convert to fraction form
    21,098.31/29,115.86 = 11,667.03/x
  3. Step 3: Cross multiply
    21,098.31x = 29,115.86 × 11,667.03
  4. Step 4: Simplify right side
    21,098.31x = 339,695,524.72
  5. Step 5: Solve for x
    x = 339,695,524.72/21,098.31
  6. Step 6: Final answer
    x = 16,100.61

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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.