Home / 31,361.00-43,314.09-20,653.73

Finding the Fourth Proportional to 31,361.00, 43,314.09 and 20,653.73

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Solution

The fourth proportional to 31,361.00, 43,314.09 and 20,653.73 is: 28,525.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,361.00 : 43,314.09 = 20,653.73 : x
  2. Step 2: Convert to fraction form
    31,361.00/43,314.09 = 20,653.73/x
  3. Step 3: Cross multiply
    31,361.00x = 43,314.09 × 20,653.73
  4. Step 4: Simplify right side
    31,361.00x = 894,597,686.43
  5. Step 5: Solve for x
    x = 894,597,686.43/31,361.00
  6. Step 6: Final answer
    x = 28,525.81

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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.