Home / 28,748.12-43,105.77-11,208.38

Finding the Fourth Proportional to 28,748.12, 43,105.77 and 11,208.38

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Solution

The fourth proportional to 28,748.12, 43,105.77 and 11,208.38 is: 16,806.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,748.12 : 43,105.77 = 11,208.38 : x
  2. Step 2: Convert to fraction form
    28,748.12/43,105.77 = 11,208.38/x
  3. Step 3: Cross multiply
    28,748.12x = 43,105.77 × 11,208.38
  4. Step 4: Simplify right side
    28,748.12x = 483,145,634.82
  5. Step 5: Solve for x
    x = 483,145,634.82/28,748.12
  6. Step 6: Final answer
    x = 16,806.17

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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.