Home / 28,893.80-43,338.72-8,117.30

Finding the Fourth Proportional to 28,893.80, 43,338.72 and 8,117.30

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Solution

The fourth proportional to 28,893.80, 43,338.72 and 8,117.30 is: 12,175.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,893.80 : 43,338.72 = 8,117.30 : x
  2. Step 2: Convert to fraction form
    28,893.80/43,338.72 = 8,117.30/x
  3. Step 3: Cross multiply
    28,893.80x = 43,338.72 × 8,117.30
  4. Step 4: Simplify right side
    28,893.80x = 351,793,391.86
  5. Step 5: Solve for x
    x = 351,793,391.86/28,893.80
  6. Step 6: Final answer
    x = 12,175.39

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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.