Home / 22,257.15-30,714.72-12,185.75

Finding the Fourth Proportional to 22,257.15, 30,714.72 and 12,185.75

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Solution

The fourth proportional to 22,257.15, 30,714.72 and 12,185.75 is: 16,816.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,257.15 : 30,714.72 = 12,185.75 : x
  2. Step 2: Convert to fraction form
    22,257.15/30,714.72 = 12,185.75/x
  3. Step 3: Cross multiply
    22,257.15x = 30,714.72 × 12,185.75
  4. Step 4: Simplify right side
    22,257.15x = 374,281,930.33
  5. Step 5: Solve for x
    x = 374,281,930.33/22,257.15
  6. Step 6: Final answer
    x = 16,816.26

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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.