Home / 28,531.26-39,375.06-15,956

Finding the Fourth Proportional to 28,531.26, 39,375.06 and 15,956

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Solution

The fourth proportional to 28,531.26, 39,375.06 and 15,956 is: 22,020.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,531.26 : 39,375.06 = 15,956 : x
  2. Step 2: Convert to fraction form
    28,531.26/39,375.06 = 15,956/x
  3. Step 3: Cross multiply
    28,531.26x = 39,375.06 × 15,956
  4. Step 4: Simplify right side
    28,531.26x = 628,268,457.36
  5. Step 5: Solve for x
    x = 628,268,457.36/28,531.26
  6. Step 6: Final answer
    x = 22,020.35

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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.