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Finding the Fourth Proportional to 30,863.95, 46,297.78 and 8,679.06

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Solution

The fourth proportional to 30,863.95, 46,297.78 and 8,679.06 is: 13,019.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,863.95 : 46,297.78 = 8,679.06 : x
  2. Step 2: Convert to fraction form
    30,863.95/46,297.78 = 8,679.06/x
  3. Step 3: Cross multiply
    30,863.95x = 46,297.78 × 8,679.06
  4. Step 4: Simplify right side
    30,863.95x = 401,821,188.79
  5. Step 5: Solve for x
    x = 401,821,188.79/30,863.95
  6. Step 6: Final answer
    x = 13,019.11

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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.