Home / 28,335.88-39,104.82-16,396.90

Finding the Fourth Proportional to 28,335.88, 39,104.82 and 16,396.90

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Solution

The fourth proportional to 28,335.88, 39,104.82 and 16,396.90 is: 22,628.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,335.88 : 39,104.82 = 16,396.90 : x
  2. Step 2: Convert to fraction form
    28,335.88/39,104.82 = 16,396.90/x
  3. Step 3: Cross multiply
    28,335.88x = 39,104.82 × 16,396.90
  4. Step 4: Simplify right side
    28,335.88x = 641,197,823.06
  5. Step 5: Solve for x
    x = 641,197,823.06/28,335.88
  6. Step 6: Final answer
    x = 22,628.48

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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.