Home / 28,622.15-39,500.94-15,879.45

Finding the Fourth Proportional to 28,622.15, 39,500.94 and 15,879.45

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Solution

The fourth proportional to 28,622.15, 39,500.94 and 15,879.45 is: 21,914.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,622.15 : 39,500.94 = 15,879.45 : x
  2. Step 2: Convert to fraction form
    28,622.15/39,500.94 = 15,879.45/x
  3. Step 3: Cross multiply
    28,622.15x = 39,500.94 × 15,879.45
  4. Step 4: Simplify right side
    28,622.15x = 627,253,201.68
  5. Step 5: Solve for x
    x = 627,253,201.68/28,622.15
  6. Step 6: Final answer
    x = 21,914.96

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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.