Home / 47,970.84-71,979.48-19,912.44

Finding the Fourth Proportional to 47,970.84, 71,979.48 and 19,912.44

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Solution

The fourth proportional to 47,970.84, 71,979.48 and 19,912.44 is: 29,878.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    47,970.84 : 71,979.48 = 19,912.44 : x
  2. Step 2: Convert to fraction form
    47,970.84/71,979.48 = 19,912.44/x
  3. Step 3: Cross multiply
    47,970.84x = 71,979.48 × 19,912.44
  4. Step 4: Simplify right side
    47,970.84x = 1,433,287,076.73
  5. Step 5: Solve for x
    x = 1,433,287,076.73/47,970.84
  6. Step 6: Final answer
    x = 29,878.30

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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.