Home / 26,135.20-39,224.40-12,116.80

Finding the Fourth Proportional to 26,135.20, 39,224.40 and 12,116.80

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Solution

The fourth proportional to 26,135.20, 39,224.40 and 12,116.80 is: 18,185.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,135.20 : 39,224.40 = 12,116.80 : x
  2. Step 2: Convert to fraction form
    26,135.20/39,224.40 = 12,116.80/x
  3. Step 3: Cross multiply
    26,135.20x = 39,224.40 × 12,116.80
  4. Step 4: Simplify right side
    26,135.20x = 475,274,209.92
  5. Step 5: Solve for x
    x = 475,274,209.92/26,135.20
  6. Step 6: Final answer
    x = 18,185.21

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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.