Home / 28,718.24-43,072.49-7,936.88

Finding the Fourth Proportional to 28,718.24, 43,072.49 and 7,936.88

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Solution

The fourth proportional to 28,718.24, 43,072.49 and 7,936.88 is: 11,903.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,718.24 : 43,072.49 = 7,936.88 : x
  2. Step 2: Convert to fraction form
    28,718.24/43,072.49 = 7,936.88/x
  3. Step 3: Cross multiply
    28,718.24x = 43,072.49 × 7,936.88
  4. Step 4: Simplify right side
    28,718.24x = 341,860,929.38
  5. Step 5: Solve for x
    x = 341,860,929.38/28,718.24
  6. Step 6: Final answer
    x = 11,903.97

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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.