Home / 20,619.77-30,932.38-5,828.36

Finding the Fourth Proportional to 20,619.77, 30,932.38 and 5,828.36

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Solution

The fourth proportional to 20,619.77, 30,932.38 and 5,828.36 is: 8,743.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,619.77 : 30,932.38 = 5,828.36 : x
  2. Step 2: Convert to fraction form
    20,619.77/30,932.38 = 5,828.36/x
  3. Step 3: Cross multiply
    20,619.77x = 30,932.38 × 5,828.36
  4. Step 4: Simplify right side
    20,619.77x = 180,284,898.92
  5. Step 5: Solve for x
    x = 180,284,898.92/20,619.77
  6. Step 6: Final answer
    x = 8,743.31

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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.