Home / 31,836.90-43,922.97-19,731.87

Finding the Fourth Proportional to 31,836.90, 43,922.97 and 19,731.87

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Solution

The fourth proportional to 31,836.90, 43,922.97 and 19,731.87 is: 27,222.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,836.90 : 43,922.97 = 19,731.87 : x
  2. Step 2: Convert to fraction form
    31,836.90/43,922.97 = 19,731.87/x
  3. Step 3: Cross multiply
    31,836.90x = 43,922.97 × 19,731.87
  4. Step 4: Simplify right side
    31,836.90x = 866,682,334.05
  5. Step 5: Solve for x
    x = 866,682,334.05/31,836.90
  6. Step 6: Final answer
    x = 27,222.57

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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.