Home / 34,815.21-52,174.97-18,978.60

Finding the Fourth Proportional to 34,815.21, 52,174.97 and 18,978.60

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Solution

The fourth proportional to 34,815.21, 52,174.97 and 18,978.60 is: 28,441.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    34,815.21 : 52,174.97 = 18,978.60 : x
  2. Step 2: Convert to fraction form
    34,815.21/52,174.97 = 18,978.60/x
  3. Step 3: Cross multiply
    34,815.21x = 52,174.97 × 18,978.60
  4. Step 4: Simplify right side
    34,815.21x = 990,207,870.85
  5. Step 5: Solve for x
    x = 990,207,870.85/34,815.21
  6. Step 6: Final answer
    x = 28,441.82

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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.