Home / 13,400.30-20,098.70-3,540.32

Finding the Fourth Proportional to 13,400.30, 20,098.70 and 3,540.32

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Solution

The fourth proportional to 13,400.30, 20,098.70 and 3,540.32 is: 5,310.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,400.30 : 20,098.70 = 3,540.32 : x
  2. Step 2: Convert to fraction form
    13,400.30/20,098.70 = 3,540.32/x
  3. Step 3: Cross multiply
    13,400.30x = 20,098.70 × 3,540.32
  4. Step 4: Simplify right side
    13,400.30x = 71,155,829.58
  5. Step 5: Solve for x
    x = 71,155,829.58/13,400.30
  6. Step 6: Final answer
    x = 5,310.02

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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.