Home / 19,936.20-29,868.30-11,609.40

Finding the Fourth Proportional to 19,936.20, 29,868.30 and 11,609.40

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Solution

The fourth proportional to 19,936.20, 29,868.30 and 11,609.40 is: 17,393.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,936.20 : 29,868.30 = 11,609.40 : x
  2. Step 2: Convert to fraction form
    19,936.20/29,868.30 = 11,609.40/x
  3. Step 3: Cross multiply
    19,936.20x = 29,868.30 × 11,609.40
  4. Step 4: Simplify right side
    19,936.20x = 346,753,042.02
  5. Step 5: Solve for x
    x = 346,753,042.02/19,936.20
  6. Step 6: Final answer
    x = 17,393.14

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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.