Home / 20,536.36-30,806.48-5,745.28

Finding the Fourth Proportional to 20,536.36, 30,806.48 and 5,745.28

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Solution

The fourth proportional to 20,536.36, 30,806.48 and 5,745.28 is: 8,618.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,536.36 : 30,806.48 = 5,745.28 : x
  2. Step 2: Convert to fraction form
    20,536.36/30,806.48 = 5,745.28/x
  3. Step 3: Cross multiply
    20,536.36x = 30,806.48 × 5,745.28
  4. Step 4: Simplify right side
    20,536.36x = 176,991,853.41
  5. Step 5: Solve for x
    x = 176,991,853.41/20,536.36
  6. Step 6: Final answer
    x = 8,618.46

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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.