Home / 28,969.56-43,371.60-19,078.56

Finding the Fourth Proportional to 28,969.56, 43,371.60 and 19,078.56

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Solution

The fourth proportional to 28,969.56, 43,371.60 and 19,078.56 is: 28,563.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,969.56 : 43,371.60 = 19,078.56 : x
  2. Step 2: Convert to fraction form
    28,969.56/43,371.60 = 19,078.56/x
  3. Step 3: Cross multiply
    28,969.56x = 43,371.60 × 19,078.56
  4. Step 4: Simplify right side
    28,969.56x = 827,467,672.90
  5. Step 5: Solve for x
    x = 827,467,672.90/28,969.56
  6. Step 6: Final answer
    x = 28,563.35

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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.