Home / 20,045.26-30,074.79-8,959.60

Finding the Fourth Proportional to 20,045.26, 30,074.79 and 8,959.60

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Solution

The fourth proportional to 20,045.26, 30,074.79 and 8,959.60 is: 13,442.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,045.26 : 30,074.79 = 8,959.60 : x
  2. Step 2: Convert to fraction form
    20,045.26/30,074.79 = 8,959.60/x
  3. Step 3: Cross multiply
    20,045.26x = 30,074.79 × 8,959.60
  4. Step 4: Simplify right side
    20,045.26x = 269,458,088.48
  5. Step 5: Solve for x
    x = 269,458,088.48/20,045.26
  6. Step 6: Final answer
    x = 13,442.48

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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.