Home / 28,405.26-39,194.19-19,933.38

Finding the Fourth Proportional to 28,405.26, 39,194.19 and 19,933.38

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Solution

The fourth proportional to 28,405.26, 39,194.19 and 19,933.38 is: 27,504.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,405.26 : 39,194.19 = 19,933.38 : x
  2. Step 2: Convert to fraction form
    28,405.26/39,194.19 = 19,933.38/x
  3. Step 3: Cross multiply
    28,405.26x = 39,194.19 × 19,933.38
  4. Step 4: Simplify right side
    28,405.26x = 781,272,683.06
  5. Step 5: Solve for x
    x = 781,272,683.06/28,405.26
  6. Step 6: Final answer
    x = 27,504.51

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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.