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Finding the Fourth Proportional to 18,393.84, 27,580.50 and 10,900.44

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Solution

The fourth proportional to 18,393.84, 27,580.50 and 10,900.44 is: 16,344.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,393.84 : 27,580.50 = 10,900.44 : x
  2. Step 2: Convert to fraction form
    18,393.84/27,580.50 = 10,900.44/x
  3. Step 3: Cross multiply
    18,393.84x = 27,580.50 × 10,900.44
  4. Step 4: Simplify right side
    18,393.84x = 300,639,585.42
  5. Step 5: Solve for x
    x = 300,639,585.42/18,393.84
  6. Step 6: Final answer
    x = 16,344.58

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.