Home / 28,745.43-43,059.83-18,889.35

Finding the Fourth Proportional to 28,745.43, 43,059.83 and 18,889.35

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Solution

The fourth proportional to 28,745.43, 43,059.83 and 18,889.35 is: 28,295.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,745.43 : 43,059.83 = 18,889.35 : x
  2. Step 2: Convert to fraction form
    28,745.43/43,059.83 = 18,889.35/x
  3. Step 3: Cross multiply
    28,745.43x = 43,059.83 × 18,889.35
  4. Step 4: Simplify right side
    28,745.43x = 813,372,105.36
  5. Step 5: Solve for x
    x = 813,372,105.36/28,745.43
  6. Step 6: Final answer
    x = 28,295.70

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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.