Home / 19,571.72-29,358.54-7,883.36

Finding the Fourth Proportional to 19,571.72, 29,358.54 and 7,883.36

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Solution

The fourth proportional to 19,571.72, 29,358.54 and 7,883.36 is: 11,825.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,571.72 : 29,358.54 = 7,883.36 : x
  2. Step 2: Convert to fraction form
    19,571.72/29,358.54 = 7,883.36/x
  3. Step 3: Cross multiply
    19,571.72x = 29,358.54 × 7,883.36
  4. Step 4: Simplify right side
    19,571.72x = 231,443,939.89
  5. Step 5: Solve for x
    x = 231,443,939.89/19,571.72
  6. Step 6: Final answer
    x = 11,825.43

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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.