Home / 28,921.61-43,382.07-11,391.59

Finding the Fourth Proportional to 28,921.61, 43,382.07 and 11,391.59

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Solution

The fourth proportional to 28,921.61, 43,382.07 and 11,391.59 is: 17,087.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,921.61 : 43,382.07 = 11,391.59 : x
  2. Step 2: Convert to fraction form
    28,921.61/43,382.07 = 11,391.59/x
  3. Step 3: Cross multiply
    28,921.61x = 43,382.07 × 11,391.59
  4. Step 4: Simplify right side
    28,921.61x = 494,190,537.88
  5. Step 5: Solve for x
    x = 494,190,537.88/28,921.61
  6. Step 6: Final answer
    x = 17,087.24

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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.