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Finding the Fourth Proportional to 30,804.59, 46,186.99 and 12,086.50

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Solution

The fourth proportional to 30,804.59, 46,186.99 and 12,086.50 is: 18,121.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,804.59 : 46,186.99 = 12,086.50 : x
  2. Step 2: Convert to fraction form
    30,804.59/46,186.99 = 12,086.50/x
  3. Step 3: Cross multiply
    30,804.59x = 46,186.99 × 12,086.50
  4. Step 4: Simplify right side
    30,804.59x = 558,239,063.54
  5. Step 5: Solve for x
    x = 558,239,063.54/30,804.59
  6. Step 6: Final answer
    x = 18,121.95

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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.