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Finding the Fourth Proportional to 26,998.80, 40,510.35 and 12,200.10

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Solution

The fourth proportional to 26,998.80, 40,510.35 and 12,200.10 is: 18,305.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,998.80 : 40,510.35 = 12,200.10 : x
  2. Step 2: Convert to fraction form
    26,998.80/40,510.35 = 12,200.10/x
  3. Step 3: Cross multiply
    26,998.80x = 40,510.35 × 12,200.10
  4. Step 4: Simplify right side
    26,998.80x = 494,230,321.04
  5. Step 5: Solve for x
    x = 494,230,321.04/26,998.80
  6. Step 6: Final answer
    x = 18,305.64

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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.