Home / 21,480.49-32,230.30-8,333.88

Finding the Fourth Proportional to 21,480.49, 32,230.30 and 8,333.88

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Solution

The fourth proportional to 21,480.49, 32,230.30 and 8,333.88 is: 12,504.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,480.49 : 32,230.30 = 8,333.88 : x
  2. Step 2: Convert to fraction form
    21,480.49/32,230.30 = 8,333.88/x
  3. Step 3: Cross multiply
    21,480.49x = 32,230.30 × 8,333.88
  4. Step 4: Simplify right side
    21,480.49x = 268,603,452.56
  5. Step 5: Solve for x
    x = 268,603,452.56/21,480.49
  6. Step 6: Final answer
    x = 12,504.53

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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.