Home / 26,749.60-40,129.20-11,168.80

Finding the Fourth Proportional to 26,749.60, 40,129.20 and 11,168.80

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Solution

The fourth proportional to 26,749.60, 40,129.20 and 11,168.80 is: 16,755.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,749.60 : 40,129.20 = 11,168.80 : x
  2. Step 2: Convert to fraction form
    26,749.60/40,129.20 = 11,168.80/x
  3. Step 3: Cross multiply
    26,749.60x = 40,129.20 × 11,168.80
  4. Step 4: Simplify right side
    26,749.60x = 448,195,008.96
  5. Step 5: Solve for x
    x = 448,195,008.96/26,749.60
  6. Step 6: Final answer
    x = 16,755.20

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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.