Home / 28,936.80-43,409.40-12,296.80

Finding the Fourth Proportional to 28,936.80, 43,409.40 and 12,296.80

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Solution

The fourth proportional to 28,936.80, 43,409.40 and 12,296.80 is: 18,446.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,936.80 : 43,409.40 = 12,296.80 : x
  2. Step 2: Convert to fraction form
    28,936.80/43,409.40 = 12,296.80/x
  3. Step 3: Cross multiply
    28,936.80x = 43,409.40 × 12,296.80
  4. Step 4: Simplify right side
    28,936.80x = 533,796,709.92
  5. Step 5: Solve for x
    x = 533,796,709.92/28,936.80
  6. Step 6: Final answer
    x = 18,446.98

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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.