Home / 28,806.78-43,215.48-10,086.42

Finding the Fourth Proportional to 28,806.78, 43,215.48 and 10,086.42

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Solution

The fourth proportional to 28,806.78, 43,215.48 and 10,086.42 is: 15,131.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,806.78 : 43,215.48 = 10,086.42 : x
  2. Step 2: Convert to fraction form
    28,806.78/43,215.48 = 10,086.42/x
  3. Step 3: Cross multiply
    28,806.78x = 43,215.48 × 10,086.42
  4. Step 4: Simplify right side
    28,806.78x = 435,889,481.78
  5. Step 5: Solve for x
    x = 435,889,481.78/28,806.78
  6. Step 6: Final answer
    x = 15,131.49

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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.