Home / 31,792.16-43,849.42-21,704.63

Finding the Fourth Proportional to 31,792.16, 43,849.42 and 21,704.63

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Solution

The fourth proportional to 31,792.16, 43,849.42 and 21,704.63 is: 29,936.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,792.16 : 43,849.42 = 21,704.63 : x
  2. Step 2: Convert to fraction form
    31,792.16/43,849.42 = 21,704.63/x
  3. Step 3: Cross multiply
    31,792.16x = 43,849.42 × 21,704.63
  4. Step 4: Simplify right side
    31,792.16x = 951,735,163.31
  5. Step 5: Solve for x
    x = 951,735,163.31/31,792.16
  6. Step 6: Final answer
    x = 29,936.16

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.