Home / 47,489.75-71,208.30-19,429.49

Finding the Fourth Proportional to 47,489.75, 71,208.30 and 19,429.49

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Solution

The fourth proportional to 47,489.75, 71,208.30 and 19,429.49 is: 29,133.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    47,489.75 : 71,208.30 = 19,429.49 : x
  2. Step 2: Convert to fraction form
    47,489.75/71,208.30 = 19,429.49/x
  3. Step 3: Cross multiply
    47,489.75x = 71,208.30 × 19,429.49
  4. Step 4: Simplify right side
    47,489.75x = 1,383,540,952.77
  5. Step 5: Solve for x
    x = 1,383,540,952.77/47,489.75
  6. Step 6: Final answer
    x = 29,133.46

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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.