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Finding the Fourth Proportional to 46.73, 70.09 and 15.88

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Solution

The fourth proportional to 46.73, 70.09 and 15.88 is: 23.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    46.73 : 70.09 = 15.88 : x
  2. Step 2: Convert to fraction form
    46.73/70.09 = 15.88/x
  3. Step 3: Cross multiply
    46.73x = 70.09 × 15.88
  4. Step 4: Simplify right side
    46.73x = 1,112.95
  5. Step 5: Solve for x
    x = 1,112.95/46.73
  6. Step 6: Final answer
    x = 23.82

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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.