Home / 28,136.60-38,827.25-16,197.40

Finding the Fourth Proportional to 28,136.60, 38,827.25 and 16,197.40

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Solution

The fourth proportional to 28,136.60, 38,827.25 and 16,197.40 is: 22,351.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,136.60 : 38,827.25 = 16,197.40 : x
  2. Step 2: Convert to fraction form
    28,136.60/38,827.25 = 16,197.40/x
  3. Step 3: Cross multiply
    28,136.60x = 38,827.25 × 16,197.40
  4. Step 4: Simplify right side
    28,136.60x = 628,900,527.44
  5. Step 5: Solve for x
    x = 628,900,527.44/28,136.60
  6. Step 6: Final answer
    x = 22,351.69

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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.