Home / 23,621.20-35,431.80-13,231.60

Finding the Fourth Proportional to 23,621.20, 35,431.80 and 13,231.60

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Solution

The fourth proportional to 23,621.20, 35,431.80 and 13,231.60 is: 19,847.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    23,621.20 : 35,431.80 = 13,231.60 : x
  2. Step 2: Convert to fraction form
    23,621.20/35,431.80 = 13,231.60/x
  3. Step 3: Cross multiply
    23,621.20x = 35,431.80 × 13,231.60
  4. Step 4: Simplify right side
    23,621.20x = 468,819,404.88
  5. Step 5: Solve for x
    x = 468,819,404.88/23,621.20
  6. Step 6: Final answer
    x = 19,847.40

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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.