Home / 19,936.80-29,851.74-11,146.68

Finding the Fourth Proportional to 19,936.80, 29,851.74 and 11,146.68

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Solution

The fourth proportional to 19,936.80, 29,851.74 and 11,146.68 is: 16,690.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,936.80 : 29,851.74 = 11,146.68 : x
  2. Step 2: Convert to fraction form
    19,936.80/29,851.74 = 11,146.68/x
  3. Step 3: Cross multiply
    19,936.80x = 29,851.74 × 11,146.68
  4. Step 4: Simplify right side
    19,936.80x = 332,747,793.22
  5. Step 5: Solve for x
    x = 332,747,793.22/19,936.80
  6. Step 6: Final answer
    x = 16,690.13

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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.