Home / 28,400.82-39,194.22-15,826.38

Finding the Fourth Proportional to 28,400.82, 39,194.22 and 15,826.38

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Solution

The fourth proportional to 28,400.82, 39,194.22 and 15,826.38 is: 21,841.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,400.82 : 39,194.22 = 15,826.38 : x
  2. Step 2: Convert to fraction form
    28,400.82/39,194.22 = 15,826.38/x
  3. Step 3: Cross multiply
    28,400.82x = 39,194.22 × 15,826.38
  4. Step 4: Simplify right side
    28,400.82x = 620,302,619.52
  5. Step 5: Solve for x
    x = 620,302,619.52/28,400.82
  6. Step 6: Final answer
    x = 21,841.01

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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.