Home / 28,679.94-43,020.18-8,958.60

Finding the Fourth Proportional to 28,679.94, 43,020.18 and 8,958.60

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Solution

The fourth proportional to 28,679.94, 43,020.18 and 8,958.60 is: 13,437.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,679.94 : 43,020.18 = 8,958.60 : x
  2. Step 2: Convert to fraction form
    28,679.94/43,020.18 = 8,958.60/x
  3. Step 3: Cross multiply
    28,679.94x = 43,020.18 × 8,958.60
  4. Step 4: Simplify right side
    28,679.94x = 385,400,584.55
  5. Step 5: Solve for x
    x = 385,400,584.55/28,679.94
  6. Step 6: Final answer
    x = 13,437.98

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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.