Home / 30,430.11-41,993.44-16,817.77

Finding the Fourth Proportional to 30,430.11, 41,993.44 and 16,817.77

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Solution

The fourth proportional to 30,430.11, 41,993.44 and 16,817.77 is: 23,208.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,430.11 : 41,993.44 = 16,817.77 : x
  2. Step 2: Convert to fraction form
    30,430.11/41,993.44 = 16,817.77/x
  3. Step 3: Cross multiply
    30,430.11x = 41,993.44 × 16,817.77
  4. Step 4: Simplify right side
    30,430.11x = 706,236,015.43
  5. Step 5: Solve for x
    x = 706,236,015.43/30,430.11
  6. Step 6: Final answer
    x = 23,208.46

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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.