Home / 21,183.22-31,768.32-14,651.38

Finding the Fourth Proportional to 21,183.22, 31,768.32 and 14,651.38

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Solution

The fourth proportional to 21,183.22, 31,768.32 and 14,651.38 is: 21,972.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,183.22 : 31,768.32 = 14,651.38 : x
  2. Step 2: Convert to fraction form
    21,183.22/31,768.32 = 14,651.38/x
  3. Step 3: Cross multiply
    21,183.22x = 31,768.32 × 14,651.38
  4. Step 4: Simplify right side
    21,183.22x = 465,449,728.28
  5. Step 5: Solve for x
    x = 465,449,728.28/21,183.22
  6. Step 6: Final answer
    x = 21,972.57

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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.