Home / 28,295.44-39,025.80-20,738.92

Finding the Fourth Proportional to 28,295.44, 39,025.80 and 20,738.92

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Solution

The fourth proportional to 28,295.44, 39,025.80 and 20,738.92 is: 28,603.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,295.44 : 39,025.80 = 20,738.92 : x
  2. Step 2: Convert to fraction form
    28,295.44/39,025.80 = 20,738.92/x
  3. Step 3: Cross multiply
    28,295.44x = 39,025.80 × 20,738.92
  4. Step 4: Simplify right side
    28,295.44x = 809,352,944.14
  5. Step 5: Solve for x
    x = 809,352,944.14/28,295.44
  6. Step 6: Final answer
    x = 28,603.65

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.