Home / 21,503.10-32,236.26-8,168.64

Finding the Fourth Proportional to 21,503.10, 32,236.26 and 8,168.64

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Solution

The fourth proportional to 21,503.10, 32,236.26 and 8,168.64 is: 12,245.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,503.10 : 32,236.26 = 8,168.64 : x
  2. Step 2: Convert to fraction form
    21,503.10/32,236.26 = 8,168.64/x
  3. Step 3: Cross multiply
    21,503.10x = 32,236.26 × 8,168.64
  4. Step 4: Simplify right side
    21,503.10x = 263,326,402.89
  5. Step 5: Solve for x
    x = 263,326,402.89/21,503.10
  6. Step 6: Final answer
    x = 12,245.97

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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.