Home / 28,702.30-43,035.84-11,151.64

Finding the Fourth Proportional to 28,702.30, 43,035.84 and 11,151.64

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Solution

The fourth proportional to 28,702.30, 43,035.84 and 11,151.64 is: 16,720.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,702.30 : 43,035.84 = 11,151.64 : x
  2. Step 2: Convert to fraction form
    28,702.30/43,035.84 = 11,151.64/x
  3. Step 3: Cross multiply
    28,702.30x = 43,035.84 × 11,151.64
  4. Step 4: Simplify right side
    28,702.30x = 479,920,194.78
  5. Step 5: Solve for x
    x = 479,920,194.78/28,702.30
  6. Step 6: Final answer
    x = 16,720.62

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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.