Home / 21,506.75-32,247.35-8,180.72

Finding the Fourth Proportional to 21,506.75, 32,247.35 and 8,180.72

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Solution

The fourth proportional to 21,506.75, 32,247.35 and 8,180.72 is: 12,266.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,506.75 : 32,247.35 = 8,180.72 : x
  2. Step 2: Convert to fraction form
    21,506.75/32,247.35 = 8,180.72/x
  3. Step 3: Cross multiply
    21,506.75x = 32,247.35 × 8,180.72
  4. Step 4: Simplify right side
    21,506.75x = 263,806,338.95
  5. Step 5: Solve for x
    x = 263,806,338.95/21,506.75
  6. Step 6: Final answer
    x = 12,266.21

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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.