Home / 36,197.20-54,281.40-12,811.60

Finding the Fourth Proportional to 36,197.20, 54,281.40 and 12,811.60

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Solution

The fourth proportional to 36,197.20, 54,281.40 and 12,811.60 is: 19,212.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    36,197.20 : 54,281.40 = 12,811.60 : x
  2. Step 2: Convert to fraction form
    36,197.20/54,281.40 = 12,811.60/x
  3. Step 3: Cross multiply
    36,197.20x = 54,281.40 × 12,811.60
  4. Step 4: Simplify right side
    36,197.20x = 695,431,584.24
  5. Step 5: Solve for x
    x = 695,431,584.24/36,197.20
  6. Step 6: Final answer
    x = 19,212.30

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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.