Home / 20,172.40-30,226.20-14,923.60

Finding the Fourth Proportional to 20,172.40, 30,226.20 and 14,923.60

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Solution

The fourth proportional to 20,172.40, 30,226.20 and 14,923.60 is: 22,361.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,172.40 : 30,226.20 = 14,923.60 : x
  2. Step 2: Convert to fraction form
    20,172.40/30,226.20 = 14,923.60/x
  3. Step 3: Cross multiply
    20,172.40x = 30,226.20 × 14,923.60
  4. Step 4: Simplify right side
    20,172.40x = 451,083,718.32
  5. Step 5: Solve for x
    x = 451,083,718.32/20,172.40
  6. Step 6: Final answer
    x = 22,361.43

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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.