Home / 19,561.64-29,371.62-13,729.64

Finding the Fourth Proportional to 19,561.64, 29,371.62 and 13,729.64

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Solution

The fourth proportional to 19,561.64, 29,371.62 and 13,729.64 is: 20,614.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,561.64 : 29,371.62 = 13,729.64 : x
  2. Step 2: Convert to fraction form
    19,561.64/29,371.62 = 13,729.64/x
  3. Step 3: Cross multiply
    19,561.64x = 29,371.62 × 13,729.64
  4. Step 4: Simplify right side
    19,561.64x = 403,261,768.82
  5. Step 5: Solve for x
    x = 403,261,768.82/19,561.64
  6. Step 6: Final answer
    x = 20,614.93

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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.