Home / 28,561.82-39,419.99-19,601.96

Finding the Fourth Proportional to 28,561.82, 39,419.99 and 19,601.96

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Solution

The fourth proportional to 28,561.82, 39,419.99 and 19,601.96 is: 27,053.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,561.82 : 39,419.99 = 19,601.96 : x
  2. Step 2: Convert to fraction form
    28,561.82/39,419.99 = 19,601.96/x
  3. Step 3: Cross multiply
    28,561.82x = 39,419.99 × 19,601.96
  4. Step 4: Simplify right side
    28,561.82x = 772,709,067.18
  5. Step 5: Solve for x
    x = 772,709,067.18/28,561.82
  6. Step 6: Final answer
    x = 27,053.92

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.