Home / 39,898.22-55,059.92-21,993.87

Finding the Fourth Proportional to 39,898.22, 55,059.92 and 21,993.87

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Solution

The fourth proportional to 39,898.22, 55,059.92 and 21,993.87 is: 30,351.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,898.22 : 55,059.92 = 21,993.87 : x
  2. Step 2: Convert to fraction form
    39,898.22/55,059.92 = 21,993.87/x
  3. Step 3: Cross multiply
    39,898.22x = 55,059.92 × 21,993.87
  4. Step 4: Simplify right side
    39,898.22x = 1,210,980,612.72
  5. Step 5: Solve for x
    x = 1,210,980,612.72/39,898.22
  6. Step 6: Final answer
    x = 30,351.75

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.