Home / 28,593.66-42,905.31-19,112.61

Finding the Fourth Proportional to 28,593.66, 42,905.31 and 19,112.61

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Solution

The fourth proportional to 28,593.66, 42,905.31 and 19,112.61 is: 28,678.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,593.66 : 42,905.31 = 19,112.61 : x
  2. Step 2: Convert to fraction form
    28,593.66/42,905.31 = 19,112.61/x
  3. Step 3: Cross multiply
    28,593.66x = 42,905.31 × 19,112.61
  4. Step 4: Simplify right side
    28,593.66x = 820,032,456.96
  5. Step 5: Solve for x
    x = 820,032,456.96/28,593.66
  6. Step 6: Final answer
    x = 28,678.82

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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.