Home / 47,491.75-71,211.30-19,431.49

Finding the Fourth Proportional to 47,491.75, 71,211.30 and 19,431.49

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Solution

The fourth proportional to 47,491.75, 71,211.30 and 19,431.49 is: 29,136.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    47,491.75 : 71,211.30 = 19,431.49 : x
  2. Step 2: Convert to fraction form
    47,491.75/71,211.30 = 19,431.49/x
  3. Step 3: Cross multiply
    47,491.75x = 71,211.30 × 19,431.49
  4. Step 4: Simplify right side
    47,491.75x = 1,383,741,663.84
  5. Step 5: Solve for x
    x = 1,383,741,663.84/47,491.75
  6. Step 6: Final answer
    x = 29,136.46

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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.