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Finding the Fourth Proportional to 34,682, 47,852.81 and 21,069.65

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Solution

The fourth proportional to 34,682, 47,852.81 and 21,069.65 is: 29,071.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    34,682 : 47,852.81 = 21,069.65 : x
  2. Step 2: Convert to fraction form
    34,682/47,852.81 = 21,069.65/x
  3. Step 3: Cross multiply
    34,682x = 47,852.81 × 21,069.65
  4. Step 4: Simplify right side
    34,682x = 1,008,241,613.60
  5. Step 5: Solve for x
    x = 1,008,241,613.60/34,682
  6. Step 6: Final answer
    x = 29,071.03

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.