Home / 21,517.85-32,268.58-8,368.52

Finding the Fourth Proportional to 21,517.85, 32,268.58 and 8,368.52

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Solution

The fourth proportional to 21,517.85, 32,268.58 and 8,368.52 is: 12,549.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,517.85 : 32,268.58 = 8,368.52 : x
  2. Step 2: Convert to fraction form
    21,517.85/32,268.58 = 8,368.52/x
  3. Step 3: Cross multiply
    21,517.85x = 32,268.58 × 8,368.52
  4. Step 4: Simplify right side
    21,517.85x = 270,040,074.84
  5. Step 5: Solve for x
    x = 270,040,074.84/21,517.85
  6. Step 6: Final answer
    x = 12,549.58

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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.