Home / 18,028.56-27,039.50-4,879.23

Finding the Fourth Proportional to 18,028.56, 27,039.50 and 4,879.23

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Solution

The fourth proportional to 18,028.56, 27,039.50 and 4,879.23 is: 7,317.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,028.56 : 27,039.50 = 4,879.23 : x
  2. Step 2: Convert to fraction form
    18,028.56/27,039.50 = 4,879.23/x
  3. Step 3: Cross multiply
    18,028.56x = 27,039.50 × 4,879.23
  4. Step 4: Simplify right side
    18,028.56x = 131,931,939.59
  5. Step 5: Solve for x
    x = 131,931,939.59/18,028.56
  6. Step 6: Final answer
    x = 7,317.94

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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.