Home / 19,229.76-28,857.60-8,702.64

Finding the Fourth Proportional to 19,229.76, 28,857.60 and 8,702.64

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Solution

The fourth proportional to 19,229.76, 28,857.60 and 8,702.64 is: 13,059.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,229.76 : 28,857.60 = 8,702.64 : x
  2. Step 2: Convert to fraction form
    19,229.76/28,857.60 = 8,702.64/x
  3. Step 3: Cross multiply
    19,229.76x = 28,857.60 × 8,702.64
  4. Step 4: Simplify right side
    19,229.76x = 251,137,304.06
  5. Step 5: Solve for x
    x = 251,137,304.06/19,229.76
  6. Step 6: Final answer
    x = 13,059.83

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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.