Home / 36,879.70-55,323.60-13,511.20

Finding the Fourth Proportional to 36,879.70, 55,323.60 and 13,511.20

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Solution

The fourth proportional to 36,879.70, 55,323.60 and 13,511.20 is: 20,268.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    36,879.70 : 55,323.60 = 13,511.20 : x
  2. Step 2: Convert to fraction form
    36,879.70/55,323.60 = 13,511.20/x
  3. Step 3: Cross multiply
    36,879.70x = 55,323.60 × 13,511.20
  4. Step 4: Simplify right side
    36,879.70x = 747,488,224.32
  5. Step 5: Solve for x
    x = 747,488,224.32/36,879.70
  6. Step 6: Final answer
    x = 20,268.28

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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.