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Finding the Fourth Proportional to 22,375.53, 30,878.34 and 12,304.62

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Solution

The fourth proportional to 22,375.53, 30,878.34 and 12,304.62 is: 16,980.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,375.53 : 30,878.34 = 12,304.62 : x
  2. Step 2: Convert to fraction form
    22,375.53/30,878.34 = 12,304.62/x
  3. Step 3: Cross multiply
    22,375.53x = 30,878.34 × 12,304.62
  4. Step 4: Simplify right side
    22,375.53x = 379,946,239.93
  5. Step 5: Solve for x
    x = 379,946,239.93/22,375.53
  6. Step 6: Final answer
    x = 16,980.44

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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.