Home / 20,648.57-28,492.97-11,694.29

Finding the Fourth Proportional to 20,648.57, 28,492.97 and 11,694.29

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Solution

The fourth proportional to 20,648.57, 28,492.97 and 11,694.29 is: 16,136.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,648.57 : 28,492.97 = 11,694.29 : x
  2. Step 2: Convert to fraction form
    20,648.57/28,492.97 = 11,694.29/x
  3. Step 3: Cross multiply
    20,648.57x = 28,492.97 × 11,694.29
  4. Step 4: Simplify right side
    20,648.57x = 333,204,853.21
  5. Step 5: Solve for x
    x = 333,204,853.21/20,648.57
  6. Step 6: Final answer
    x = 16,136.95

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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.