Home / 28,136.40-38,823.92-16,197.43

Finding the Fourth Proportional to 28,136.40, 38,823.92 and 16,197.43

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Solution

The fourth proportional to 28,136.40, 38,823.92 and 16,197.43 is: 22,349.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,136.40 : 38,823.92 = 16,197.43 : x
  2. Step 2: Convert to fraction form
    28,136.40/38,823.92 = 16,197.43/x
  3. Step 3: Cross multiply
    28,136.40x = 38,823.92 × 16,197.43
  4. Step 4: Simplify right side
    28,136.40x = 628,847,451.42
  5. Step 5: Solve for x
    x = 628,847,451.42/28,136.40
  6. Step 6: Final answer
    x = 22,349.97

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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.