Home / 21,512.58-32,278.11-11,131.62

Finding the Fourth Proportional to 21,512.58, 32,278.11 and 11,131.62

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Solution

The fourth proportional to 21,512.58, 32,278.11 and 11,131.62 is: 16,702.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,512.58 : 32,278.11 = 11,131.62 : x
  2. Step 2: Convert to fraction form
    21,512.58/32,278.11 = 11,131.62/x
  3. Step 3: Cross multiply
    21,512.58x = 32,278.11 × 11,131.62
  4. Step 4: Simplify right side
    21,512.58x = 359,307,654.84
  5. Step 5: Solve for x
    x = 359,307,654.84/21,512.58
  6. Step 6: Final answer
    x = 16,702.21

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1.5x scale

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.