Home / 34,768.80-52,172.10-18,972.90

Finding the Fourth Proportional to 34,768.80, 52,172.10 and 18,972.90

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Solution

The fourth proportional to 34,768.80, 52,172.10 and 18,972.90 is: 28,469.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    34,768.80 : 52,172.10 = 18,972.90 : x
  2. Step 2: Convert to fraction form
    34,768.80/52,172.10 = 18,972.90/x
  3. Step 3: Cross multiply
    34,768.80x = 52,172.10 × 18,972.90
  4. Step 4: Simplify right side
    34,768.80x = 989,856,036.09
  5. Step 5: Solve for x
    x = 989,856,036.09/34,768.80
  6. Step 6: Final answer
    x = 28,469.66

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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.