Home / 28,694.30-43,039.78-12,895.26

Finding the Fourth Proportional to 28,694.30, 43,039.78 and 12,895.26

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Solution

The fourth proportional to 28,694.30, 43,039.78 and 12,895.26 is: 19,342.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,694.30 : 43,039.78 = 12,895.26 : x
  2. Step 2: Convert to fraction form
    28,694.30/43,039.78 = 12,895.26/x
  3. Step 3: Cross multiply
    28,694.30x = 43,039.78 × 12,895.26
  4. Step 4: Simplify right side
    28,694.30x = 555,009,153.44
  5. Step 5: Solve for x
    x = 555,009,153.44/28,694.30
  6. Step 6: Final answer
    x = 19,342.14

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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.