Home / 21,092.06-29,107.15-11,660.63

Finding the Fourth Proportional to 21,092.06, 29,107.15 and 11,660.63

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Solution

The fourth proportional to 21,092.06, 29,107.15 and 11,660.63 is: 16,091.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,092.06 : 29,107.15 = 11,660.63 : x
  2. Step 2: Convert to fraction form
    21,092.06/29,107.15 = 11,660.63/x
  3. Step 3: Cross multiply
    21,092.06x = 29,107.15 × 11,660.63
  4. Step 4: Simplify right side
    21,092.06x = 339,407,531.82
  5. Step 5: Solve for x
    x = 339,407,531.82/21,092.06
  6. Step 6: Final answer
    x = 16,091.72

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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.