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Finding the Fourth Proportional to 22,175, 30,601.54 and 12,239

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Solution

The fourth proportional to 22,175, 30,601.54 and 12,239 is: 16,889.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,175 : 30,601.54 = 12,239 : x
  2. Step 2: Convert to fraction form
    22,175/30,601.54 = 12,239/x
  3. Step 3: Cross multiply
    22,175x = 30,601.54 × 12,239
  4. Step 4: Simplify right side
    22,175x = 374,532,248.06
  5. Step 5: Solve for x
    x = 374,532,248.06/22,175
  6. Step 6: Final answer
    x = 16,889.84

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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.