Home / 19,994.30-29,977.05-11,231.90

Finding the Fourth Proportional to 19,994.30, 29,977.05 and 11,231.90

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Solution

The fourth proportional to 19,994.30, 29,977.05 and 11,231.90 is: 16,839.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,994.30 : 29,977.05 = 11,231.90 : x
  2. Step 2: Convert to fraction form
    19,994.30/29,977.05 = 11,231.90/x
  3. Step 3: Cross multiply
    19,994.30x = 29,977.05 × 11,231.90
  4. Step 4: Simplify right side
    19,994.30x = 336,699,227.90
  5. Step 5: Solve for x
    x = 336,699,227.90/19,994.30
  6. Step 6: Final answer
    x = 16,839.76

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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.