Home / 18,405.60-27,584.10-16,315.80

Finding the Fourth Proportional to 18,405.60, 27,584.10 and 16,315.80

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Solution

The fourth proportional to 18,405.60, 27,584.10 and 16,315.80 is: 24,452.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,405.60 : 27,584.10 = 16,315.80 : x
  2. Step 2: Convert to fraction form
    18,405.60/27,584.10 = 16,315.80/x
  3. Step 3: Cross multiply
    18,405.60x = 27,584.10 × 16,315.80
  4. Step 4: Simplify right side
    18,405.60x = 450,056,658.78
  5. Step 5: Solve for x
    x = 450,056,658.78/18,405.60
  6. Step 6: Final answer
    x = 24,452.16

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.