Home / 31,793.06-43,882.49-21,725.57

Finding the Fourth Proportional to 31,793.06, 43,882.49 and 21,725.57

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Solution

The fourth proportional to 31,793.06, 43,882.49 and 21,725.57 is: 29,986.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,793.06 : 43,882.49 = 21,725.57 : x
  2. Step 2: Convert to fraction form
    31,793.06/43,882.49 = 21,725.57/x
  3. Step 3: Cross multiply
    31,793.06x = 43,882.49 × 21,725.57
  4. Step 4: Simplify right side
    31,793.06x = 953,372,108.27
  5. Step 5: Solve for x
    x = 953,372,108.27/31,793.06
  6. Step 6: Final answer
    x = 29,986.80

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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.