Home / 20,093.18-27,729.15-12,136.82

Finding the Fourth Proportional to 20,093.18, 27,729.15 and 12,136.82

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Solution

The fourth proportional to 20,093.18, 27,729.15 and 12,136.82 is: 16,749.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,093.18 : 27,729.15 = 12,136.82 : x
  2. Step 2: Convert to fraction form
    20,093.18/27,729.15 = 12,136.82/x
  3. Step 3: Cross multiply
    20,093.18x = 27,729.15 × 12,136.82
  4. Step 4: Simplify right side
    20,093.18x = 336,543,702.30
  5. Step 5: Solve for x
    x = 336,543,702.30/20,093.18
  6. Step 6: Final answer
    x = 16,749.15

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.