Home / 19,993.43-30,000.32-12,114.77

Finding the Fourth Proportional to 19,993.43, 30,000.32 and 12,114.77

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Solution

The fourth proportional to 19,993.43, 30,000.32 and 12,114.77 is: 18,178.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,993.43 : 30,000.32 = 12,114.77 : x
  2. Step 2: Convert to fraction form
    19,993.43/30,000.32 = 12,114.77/x
  3. Step 3: Cross multiply
    19,993.43x = 30,000.32 × 12,114.77
  4. Step 4: Simplify right side
    19,993.43x = 363,446,879.73
  5. Step 5: Solve for x
    x = 363,446,879.73/19,993.43
  6. Step 6: Final answer
    x = 18,178.31

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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.