Home / 36,140.24-49,879.32-21,990.62

Finding the Fourth Proportional to 36,140.24, 49,879.32 and 21,990.62

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Solution

The fourth proportional to 36,140.24, 49,879.32 and 21,990.62 is: 30,350.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    36,140.24 : 49,879.32 = 21,990.62 : x
  2. Step 2: Convert to fraction form
    36,140.24/49,879.32 = 21,990.62/x
  3. Step 3: Cross multiply
    36,140.24x = 49,879.32 × 21,990.62
  4. Step 4: Simplify right side
    36,140.24x = 1,096,877,171.98
  5. Step 5: Solve for x
    x = 1,096,877,171.98/36,140.24
  6. Step 6: Final answer
    x = 30,350.58

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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.