Home / 28,674.43-43,025.73-12,890.61

Finding the Fourth Proportional to 28,674.43, 43,025.73 and 12,890.61

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Solution

The fourth proportional to 28,674.43, 43,025.73 and 12,890.61 is: 19,342.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,674.43 : 43,025.73 = 12,890.61 : x
  2. Step 2: Convert to fraction form
    28,674.43/43,025.73 = 12,890.61/x
  3. Step 3: Cross multiply
    28,674.43x = 43,025.73 × 12,890.61
  4. Step 4: Simplify right side
    28,674.43x = 554,627,625.81
  5. Step 5: Solve for x
    x = 554,627,625.81/28,674.43
  6. Step 6: Final answer
    x = 19,342.24

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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.