Home / 28,405.29-39,194.73-17,072.09

Finding the Fourth Proportional to 28,405.29, 39,194.73 and 17,072.09

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Solution

The fourth proportional to 28,405.29, 39,194.73 and 17,072.09 is: 23,556.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,405.29 : 39,194.73 = 17,072.09 : x
  2. Step 2: Convert to fraction form
    28,405.29/39,194.73 = 17,072.09/x
  3. Step 3: Cross multiply
    28,405.29x = 39,194.73 × 17,072.09
  4. Step 4: Simplify right side
    28,405.29x = 669,135,762.11
  5. Step 5: Solve for x
    x = 669,135,762.11/28,405.29
  6. Step 6: Final answer
    x = 23,556.73

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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.