Home / 21,909.64-32,887.86-9,435.84

Finding the Fourth Proportional to 21,909.64, 32,887.86 and 9,435.84

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Solution

The fourth proportional to 21,909.64, 32,887.86 and 9,435.84 is: 14,163.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,909.64 : 32,887.86 = 9,435.84 : x
  2. Step 2: Convert to fraction form
    21,909.64/32,887.86 = 9,435.84/x
  3. Step 3: Cross multiply
    21,909.64x = 32,887.86 × 9,435.84
  4. Step 4: Simplify right side
    21,909.64x = 310,324,584.90
  5. Step 5: Solve for x
    x = 310,324,584.90/21,909.64
  6. Step 6: Final answer
    x = 14,163.84

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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.