Home / 21,921.37-30,249.66-12,363.61

Finding the Fourth Proportional to 21,921.37, 30,249.66 and 12,363.61

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Solution

The fourth proportional to 21,921.37, 30,249.66 and 12,363.61 is: 17,060.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,921.37 : 30,249.66 = 12,363.61 : x
  2. Step 2: Convert to fraction form
    21,921.37/30,249.66 = 12,363.61/x
  3. Step 3: Cross multiply
    21,921.37x = 30,249.66 × 12,363.61
  4. Step 4: Simplify right side
    21,921.37x = 373,994,998.87
  5. Step 5: Solve for x
    x = 373,994,998.87/21,921.37
  6. Step 6: Final answer
    x = 17,060.75

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.