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Finding the Fourth Proportional to 28,804.92, 43,215.22 and 8,813.97

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Solution

The fourth proportional to 28,804.92, 43,215.22 and 8,813.97 is: 13,223.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,804.92 : 43,215.22 = 8,813.97 : x
  2. Step 2: Convert to fraction form
    28,804.92/43,215.22 = 8,813.97/x
  3. Step 3: Cross multiply
    28,804.92x = 43,215.22 × 8,813.97
  4. Step 4: Simplify right side
    28,804.92x = 380,897,436.55
  5. Step 5: Solve for x
    x = 380,897,436.55/28,804.92
  6. Step 6: Final answer
    x = 13,223.35

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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.