Home / 31,704.97-43,749.78-18,955.61

Finding the Fourth Proportional to 31,704.97, 43,749.78 and 18,955.61

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Solution

The fourth proportional to 31,704.97, 43,749.78 and 18,955.61 is: 26,156.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,704.97 : 43,749.78 = 18,955.61 : x
  2. Step 2: Convert to fraction form
    31,704.97/43,749.78 = 18,955.61/x
  3. Step 3: Cross multiply
    31,704.97x = 43,749.78 × 18,955.61
  4. Step 4: Simplify right side
    31,704.97x = 829,303,767.27
  5. Step 5: Solve for x
    x = 829,303,767.27/31,704.97
  6. Step 6: Final answer
    x = 26,156.90

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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.