Home / 19,996.56-29,919.45-11,961.57

Finding the Fourth Proportional to 19,996.56, 29,919.45 and 11,961.57

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Solution

The fourth proportional to 19,996.56, 29,919.45 and 11,961.57 is: 17,897.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,996.56 : 29,919.45 = 11,961.57 : x
  2. Step 2: Convert to fraction form
    19,996.56/29,919.45 = 11,961.57/x
  3. Step 3: Cross multiply
    19,996.56x = 29,919.45 × 11,961.57
  4. Step 4: Simplify right side
    19,996.56x = 357,883,595.54
  5. Step 5: Solve for x
    x = 357,883,595.54/19,996.56
  6. Step 6: Final answer
    x = 17,897.26

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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.