Home / 36,986.80-55,480.20-31,081.90

Finding the Fourth Proportional to 36,986.80, 55,480.20 and 31,081.90

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Solution

The fourth proportional to 36,986.80, 55,480.20 and 31,081.90 is: 46,622.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    36,986.80 : 55,480.20 = 31,081.90 : x
  2. Step 2: Convert to fraction form
    36,986.80/55,480.20 = 31,081.90/x
  3. Step 3: Cross multiply
    36,986.80x = 55,480.20 × 31,081.90
  4. Step 4: Simplify right side
    36,986.80x = 1,724,430,028.38
  5. Step 5: Solve for x
    x = 1,724,430,028.38/36,986.80
  6. Step 6: Final answer
    x = 46,622.85

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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.