Home / 20,725.44-28,599.72-12,227.12

Finding the Fourth Proportional to 20,725.44, 28,599.72 and 12,227.12

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Solution

The fourth proportional to 20,725.44, 28,599.72 and 12,227.12 is: 16,872.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,725.44 : 28,599.72 = 12,227.12 : x
  2. Step 2: Convert to fraction form
    20,725.44/28,599.72 = 12,227.12/x
  3. Step 3: Cross multiply
    20,725.44x = 28,599.72 × 12,227.12
  4. Step 4: Simplify right side
    20,725.44x = 349,692,208.41
  5. Step 5: Solve for x
    x = 349,692,208.41/20,725.44
  6. Step 6: Final answer
    x = 16,872.61

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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.