Home / 36,120.15-49,865.49-21,782.54

Finding the Fourth Proportional to 36,120.15, 49,865.49 and 21,782.54

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Solution

The fourth proportional to 36,120.15, 49,865.49 and 21,782.54 is: 30,071.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    36,120.15 : 49,865.49 = 21,782.54 : x
  2. Step 2: Convert to fraction form
    36,120.15/49,865.49 = 21,782.54/x
  3. Step 3: Cross multiply
    36,120.15x = 49,865.49 × 21,782.54
  4. Step 4: Simplify right side
    36,120.15x = 1,086,197,155.21
  5. Step 5: Solve for x
    x = 1,086,197,155.21/36,120.15
  6. Step 6: Final answer
    x = 30,071.78

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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.