Home / 26,908.60-40,343.70-12,105.40

Finding the Fourth Proportional to 26,908.60, 40,343.70 and 12,105.40

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Solution

The fourth proportional to 26,908.60, 40,343.70 and 12,105.40 is: 18,149.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,908.60 : 40,343.70 = 12,105.40 : x
  2. Step 2: Convert to fraction form
    26,908.60/40,343.70 = 12,105.40/x
  3. Step 3: Cross multiply
    26,908.60x = 40,343.70 × 12,105.40
  4. Step 4: Simplify right side
    26,908.60x = 488,376,625.98
  5. Step 5: Solve for x
    x = 488,376,625.98/26,908.60
  6. Step 6: Final answer
    x = 18,149.46

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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.