Home / 21,591.77-32,360.36-11,571.61

Finding the Fourth Proportional to 21,591.77, 32,360.36 and 11,571.61

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Solution

The fourth proportional to 21,591.77, 32,360.36 and 11,571.61 is: 17,342.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,591.77 : 32,360.36 = 11,571.61 : x
  2. Step 2: Convert to fraction form
    21,591.77/32,360.36 = 11,571.61/x
  3. Step 3: Cross multiply
    21,591.77x = 32,360.36 × 11,571.61
  4. Step 4: Simplify right side
    21,591.77x = 374,461,452.39
  5. Step 5: Solve for x
    x = 374,461,452.39/21,591.77
  6. Step 6: Final answer
    x = 17,342.79

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.