Home / 21,771.81-32,634.60-13,849.41

Finding the Fourth Proportional to 21,771.81, 32,634.60 and 13,849.41

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Solution

The fourth proportional to 21,771.81, 32,634.60 and 13,849.41 is: 20,759.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,771.81 : 32,634.60 = 13,849.41 : x
  2. Step 2: Convert to fraction form
    21,771.81/32,634.60 = 13,849.41/x
  3. Step 3: Cross multiply
    21,771.81x = 32,634.60 × 13,849.41
  4. Step 4: Simplify right side
    21,771.81x = 451,969,750.68
  5. Step 5: Solve for x
    x = 451,969,750.68/21,771.81
  6. Step 6: Final answer
    x = 20,759.40

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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.