Home / 28,136.25-38,828.66-16,197.66

Finding the Fourth Proportional to 28,136.25, 38,828.66 and 16,197.66

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Solution

The fourth proportional to 28,136.25, 38,828.66 and 16,197.66 is: 22,353.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,136.25 : 38,828.66 = 16,197.66 : x
  2. Step 2: Convert to fraction form
    28,136.25/38,828.66 = 16,197.66/x
  3. Step 3: Cross multiply
    28,136.25x = 38,828.66 × 16,197.66
  4. Step 4: Simplify right side
    28,136.25x = 628,933,351.95
  5. Step 5: Solve for x
    x = 628,933,351.95/28,136.25
  6. Step 6: Final answer
    x = 22,353.13

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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.