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Finding the Fourth Proportional to 28,808.26, 43,212.38 and 6,920.26

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Solution

The fourth proportional to 28,808.26, 43,212.38 and 6,920.26 is: 10,380.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,808.26 : 43,212.38 = 6,920.26 : x
  2. Step 2: Convert to fraction form
    28,808.26/43,212.38 = 6,920.26/x
  3. Step 3: Cross multiply
    28,808.26x = 43,212.38 × 6,920.26
  4. Step 4: Simplify right side
    28,808.26x = 299,040,904.82
  5. Step 5: Solve for x
    x = 299,040,904.82/28,808.26
  6. Step 6: Final answer
    x = 10,380.39

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1.5x scale

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.