Home / 26,906.90-40,348.20-12,108.20

Finding the Fourth Proportional to 26,906.90, 40,348.20 and 12,108.20

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Solution

The fourth proportional to 26,906.90, 40,348.20 and 12,108.20 is: 18,156.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,906.90 : 40,348.20 = 12,108.20 : x
  2. Step 2: Convert to fraction form
    26,906.90/40,348.20 = 12,108.20/x
  3. Step 3: Cross multiply
    26,906.90x = 40,348.20 × 12,108.20
  4. Step 4: Simplify right side
    26,906.90x = 488,544,075.24
  5. Step 5: Solve for x
    x = 488,544,075.24/26,906.90
  6. Step 6: Final answer
    x = 18,156.83

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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.