Home / 20,577.12-30,906.68-19,416.59

Finding the Fourth Proportional to 20,577.12, 30,906.68 and 19,416.59

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Solution

The fourth proportional to 20,577.12, 30,906.68 and 19,416.59 is: 29,163.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,577.12 : 30,906.68 = 19,416.59 : x
  2. Step 2: Convert to fraction form
    20,577.12/30,906.68 = 19,416.59/x
  3. Step 3: Cross multiply
    20,577.12x = 30,906.68 × 19,416.59
  4. Step 4: Simplify right side
    20,577.12x = 600,102,333.82
  5. Step 5: Solve for x
    x = 600,102,333.82/20,577.12
  6. Step 6: Final answer
    x = 29,163.57

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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.