Home / 26,650.20-40,061.70-18,912.60

Finding the Fourth Proportional to 26,650.20, 40,061.70 and 18,912.60

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Solution

The fourth proportional to 26,650.20, 40,061.70 and 18,912.60 is: 28,430.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,650.20 : 40,061.70 = 18,912.60 : x
  2. Step 2: Convert to fraction form
    26,650.20/40,061.70 = 18,912.60/x
  3. Step 3: Cross multiply
    26,650.20x = 40,061.70 × 18,912.60
  4. Step 4: Simplify right side
    26,650.20x = 757,670,907.42
  5. Step 5: Solve for x
    x = 757,670,907.42/26,650.20
  6. Step 6: Final answer
    x = 28,430.21

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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.