Home / 22,257.09-30,714.81-12,185.61

Finding the Fourth Proportional to 22,257.09, 30,714.81 and 12,185.61

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Solution

The fourth proportional to 22,257.09, 30,714.81 and 12,185.61 is: 16,816.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,257.09 : 30,714.81 = 12,185.61 : x
  2. Step 2: Convert to fraction form
    22,257.09/30,714.81 = 12,185.61/x
  3. Step 3: Cross multiply
    22,257.09x = 30,714.81 × 12,185.61
  4. Step 4: Simplify right side
    22,257.09x = 374,278,695.88
  5. Step 5: Solve for x
    x = 374,278,695.88/22,257.09
  6. Step 6: Final answer
    x = 16,816.16

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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.