Home / 28,987.25-40,010.28-17,054.43

Finding the Fourth Proportional to 28,987.25, 40,010.28 and 17,054.43

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Solution

The fourth proportional to 28,987.25, 40,010.28 and 17,054.43 is: 23,539.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,987.25 : 40,010.28 = 17,054.43 : x
  2. Step 2: Convert to fraction form
    28,987.25/40,010.28 = 17,054.43/x
  3. Step 3: Cross multiply
    28,987.25x = 40,010.28 × 17,054.43
  4. Step 4: Simplify right side
    28,987.25x = 682,352,578.57
  5. Step 5: Solve for x
    x = 682,352,578.57/28,987.25
  6. Step 6: Final answer
    x = 23,539.75

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.