Home / 26,928.66-40,361.34-12,120.24

Finding the Fourth Proportional to 26,928.66, 40,361.34 and 12,120.24

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Solution

The fourth proportional to 26,928.66, 40,361.34 and 12,120.24 is: 18,166.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,928.66 : 40,361.34 = 12,120.24 : x
  2. Step 2: Convert to fraction form
    26,928.66/40,361.34 = 12,120.24/x
  3. Step 3: Cross multiply
    26,928.66x = 40,361.34 × 12,120.24
  4. Step 4: Simplify right side
    26,928.66x = 489,189,127.52
  5. Step 5: Solve for x
    x = 489,189,127.52/26,928.66
  6. Step 6: Final answer
    x = 18,166.11

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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.