Home / 28,632.39-42,965.33-11,991.02

Finding the Fourth Proportional to 28,632.39, 42,965.33 and 11,991.02

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Solution

The fourth proportional to 28,632.39, 42,965.33 and 11,991.02 is: 17,993.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,632.39 : 42,965.33 = 11,991.02 : x
  2. Step 2: Convert to fraction form
    28,632.39/42,965.33 = 11,991.02/x
  3. Step 3: Cross multiply
    28,632.39x = 42,965.33 × 11,991.02
  4. Step 4: Simplify right side
    28,632.39x = 515,198,071.38
  5. Step 5: Solve for x
    x = 515,198,071.38/28,632.39
  6. Step 6: Final answer
    x = 17,993.54

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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.