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Finding the Fourth Proportional to 43,096, 64,644 and 18,472

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Solution

The fourth proportional to 43,096, 64,644 and 18,472 is: 27,708

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,096 : 64,644 = 18,472 : x
  2. Step 2: Convert to fraction form
    43,096/64,644 = 18,472/x
  3. Step 3: Cross multiply
    43,096x = 64,644 × 18,472
  4. Step 4: Simplify right side
    43,096x = 1,194,103,968
  5. Step 5: Solve for x
    x = 1,194,103,968/43,096
  6. Step 6: Final answer
    x = 27,708

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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.