Home / 21,755.31-30,024.45-12,196.83

Finding the Fourth Proportional to 21,755.31, 30,024.45 and 12,196.83

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Solution

The fourth proportional to 21,755.31, 30,024.45 and 12,196.83 is: 16,832.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,755.31 : 30,024.45 = 12,196.83 : x
  2. Step 2: Convert to fraction form
    21,755.31/30,024.45 = 12,196.83/x
  3. Step 3: Cross multiply
    21,755.31x = 30,024.45 × 12,196.83
  4. Step 4: Simplify right side
    21,755.31x = 366,203,112.49
  5. Step 5: Solve for x
    x = 366,203,112.49/21,755.31
  6. Step 6: Final answer
    x = 16,832.82

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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.