Home / 20,111.16-30,003.44-19,022.52

Finding the Fourth Proportional to 20,111.16, 30,003.44 and 19,022.52

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Solution

The fourth proportional to 20,111.16, 30,003.44 and 19,022.52 is: 28,379.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,111.16 : 30,003.44 = 19,022.52 : x
  2. Step 2: Convert to fraction form
    20,111.16/30,003.44 = 19,022.52/x
  3. Step 3: Cross multiply
    20,111.16x = 30,003.44 × 19,022.52
  4. Step 4: Simplify right side
    20,111.16x = 570,741,037.47
  5. Step 5: Solve for x
    x = 570,741,037.47/20,111.16
  6. Step 6: Final answer
    x = 28,379.32

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.