Home / 21,492.24-32,241.60-7,638

Finding the Fourth Proportional to 21,492.24, 32,241.60 and 7,638

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Solution

The fourth proportional to 21,492.24, 32,241.60 and 7,638 is: 11,458.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,492.24 : 32,241.60 = 7,638 : x
  2. Step 2: Convert to fraction form
    21,492.24/32,241.60 = 7,638/x
  3. Step 3: Cross multiply
    21,492.24x = 32,241.60 × 7,638
  4. Step 4: Simplify right side
    21,492.24x = 246,261,340.80
  5. Step 5: Solve for x
    x = 246,261,340.80/21,492.24
  6. Step 6: Final answer
    x = 11,458.15

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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.