Home / 21,947.12-32,939.82-19,453.94

Finding the Fourth Proportional to 21,947.12, 32,939.82 and 19,453.94

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Solution

The fourth proportional to 21,947.12, 32,939.82 and 19,453.94 is: 29,197.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,947.12 : 32,939.82 = 19,453.94 : x
  2. Step 2: Convert to fraction form
    21,947.12/32,939.82 = 19,453.94/x
  3. Step 3: Cross multiply
    21,947.12x = 32,939.82 × 19,453.94
  4. Step 4: Simplify right side
    21,947.12x = 640,809,281.89
  5. Step 5: Solve for x
    x = 640,809,281.89/21,947.12
  6. Step 6: Final answer
    x = 29,197.88

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.