Home / 21,874.44-30,186.46-12,442.98

Finding the Fourth Proportional to 21,874.44, 30,186.46 and 12,442.98

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Solution

The fourth proportional to 21,874.44, 30,186.46 and 12,442.98 is: 17,171.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,874.44 : 30,186.46 = 12,442.98 : x
  2. Step 2: Convert to fraction form
    21,874.44/30,186.46 = 12,442.98/x
  3. Step 3: Cross multiply
    21,874.44x = 30,186.46 × 12,442.98
  4. Step 4: Simplify right side
    21,874.44x = 375,609,336.01
  5. Step 5: Solve for x
    x = 375,609,336.01/21,874.44
  6. Step 6: Final answer
    x = 17,171.16

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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.