Home / 26,919.60-40,379.40-8,199.60

Finding the Fourth Proportional to 26,919.60, 40,379.40 and 8,199.60

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Solution

The fourth proportional to 26,919.60, 40,379.40 and 8,199.60 is: 12,299.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,919.60 : 40,379.40 = 8,199.60 : x
  2. Step 2: Convert to fraction form
    26,919.60/40,379.40 = 8,199.60/x
  3. Step 3: Cross multiply
    26,919.60x = 40,379.40 × 8,199.60
  4. Step 4: Simplify right side
    26,919.60x = 331,094,928.24
  5. Step 5: Solve for x
    x = 331,094,928.24/26,919.60
  6. Step 6: Final answer
    x = 12,299.40

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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.