Home / 21,351.04-29,464.43-11,919.60

Finding the Fourth Proportional to 21,351.04, 29,464.43 and 11,919.60

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Solution

The fourth proportional to 21,351.04, 29,464.43 and 11,919.60 is: 16,449.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,351.04 : 29,464.43 = 11,919.60 : x
  2. Step 2: Convert to fraction form
    21,351.04/29,464.43 = 11,919.60/x
  3. Step 3: Cross multiply
    21,351.04x = 29,464.43 × 11,919.60
  4. Step 4: Simplify right side
    21,351.04x = 351,204,249.63
  5. Step 5: Solve for x
    x = 351,204,249.63/21,351.04
  6. Step 6: Final answer
    x = 16,449.05

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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.