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Finding the Fourth Proportional to 28,805.69, 43,208.47 and 8,029.19

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Solution

The fourth proportional to 28,805.69, 43,208.47 and 8,029.19 is: 12,043.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,805.69 : 43,208.47 = 8,029.19 : x
  2. Step 2: Convert to fraction form
    28,805.69/43,208.47 = 8,029.19/x
  3. Step 3: Cross multiply
    28,805.69x = 43,208.47 × 8,029.19
  4. Step 4: Simplify right side
    28,805.69x = 346,928,759.05
  5. Step 5: Solve for x
    x = 346,928,759.05/28,805.69
  6. Step 6: Final answer
    x = 12,043.76

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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.