Home / 28,344.26-42,517.89-8,621.30

Finding the Fourth Proportional to 28,344.26, 42,517.89 and 8,621.30

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Solution

The fourth proportional to 28,344.26, 42,517.89 and 8,621.30 is: 12,932.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,344.26 : 42,517.89 = 8,621.30 : x
  2. Step 2: Convert to fraction form
    28,344.26/42,517.89 = 8,621.30/x
  3. Step 3: Cross multiply
    28,344.26x = 42,517.89 × 8,621.30
  4. Step 4: Simplify right side
    28,344.26x = 366,559,272.47
  5. Step 5: Solve for x
    x = 366,559,272.47/28,344.26
  6. Step 6: Final answer
    x = 12,932.40

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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.