Home / 21,559.64-32,326.56-8,396.60

Finding the Fourth Proportional to 21,559.64, 32,326.56 and 8,396.60

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Solution

The fourth proportional to 21,559.64, 32,326.56 and 8,396.60 is: 12,589.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,559.64 : 32,326.56 = 8,396.60 : x
  2. Step 2: Convert to fraction form
    21,559.64/32,326.56 = 8,396.60/x
  3. Step 3: Cross multiply
    21,559.64x = 32,326.56 × 8,396.60
  4. Step 4: Simplify right side
    21,559.64x = 271,433,032.06
  5. Step 5: Solve for x
    x = 271,433,032.06/21,559.64
  6. Step 6: Final answer
    x = 12,589.87

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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.