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Finding the Fourth Proportional to 18,322, 25,281.48 and 10,361.68

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Solution

The fourth proportional to 18,322, 25,281.48 and 10,361.68 is: 14,297.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,322 : 25,281.48 = 10,361.68 : x
  2. Step 2: Convert to fraction form
    18,322/25,281.48 = 10,361.68/x
  3. Step 3: Cross multiply
    18,322x = 25,281.48 × 10,361.68
  4. Step 4: Simplify right side
    18,322x = 261,958,605.69
  5. Step 5: Solve for x
    x = 261,958,605.69/18,322
  6. Step 6: Final answer
    x = 14,297.49

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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.