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Finding the Fourth Proportional to 30,863.82, 46,295.73 and 8,679.45

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Solution

The fourth proportional to 30,863.82, 46,295.73 and 8,679.45 is: 13,019.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,863.82 : 46,295.73 = 8,679.45 : x
  2. Step 2: Convert to fraction form
    30,863.82/46,295.73 = 8,679.45/x
  3. Step 3: Cross multiply
    30,863.82x = 46,295.73 × 8,679.45
  4. Step 4: Simplify right side
    30,863.82x = 401,821,473.75
  5. Step 5: Solve for x
    x = 401,821,473.75/30,863.82
  6. Step 6: Final answer
    x = 13,019.18

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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.