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Finding the Fourth Proportional to 46.79, 70.18 and 16.36

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Solution

The fourth proportional to 46.79, 70.18 and 16.36 is: 24.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    46.79 : 70.18 = 16.36 : x
  2. Step 2: Convert to fraction form
    46.79/70.18 = 16.36/x
  3. Step 3: Cross multiply
    46.79x = 70.18 × 16.36
  4. Step 4: Simplify right side
    46.79x = 1,147.93
  5. Step 5: Solve for x
    x = 1,147.93/46.79
  6. Step 6: Final answer
    x = 24.54

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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.