Home / 20,648.44-30,972.60-5,857.36

Finding the Fourth Proportional to 20,648.44, 30,972.60 and 5,857.36

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Solution

The fourth proportional to 20,648.44, 30,972.60 and 5,857.36 is: 8,786.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,648.44 : 30,972.60 = 5,857.36 : x
  2. Step 2: Convert to fraction form
    20,648.44/30,972.60 = 5,857.36/x
  3. Step 3: Cross multiply
    20,648.44x = 30,972.60 × 5,857.36
  4. Step 4: Simplify right side
    20,648.44x = 181,417,668.34
  5. Step 5: Solve for x
    x = 181,417,668.34/20,648.44
  6. Step 6: Final answer
    x = 8,786.02

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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.