Home / 39,004.68-53,826.52-21,099.64

Finding the Fourth Proportional to 39,004.68, 53,826.52 and 21,099.64

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Solution

The fourth proportional to 39,004.68, 53,826.52 and 21,099.64 is: 29,117.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,004.68 : 53,826.52 = 21,099.64 : x
  2. Step 2: Convert to fraction form
    39,004.68/53,826.52 = 21,099.64/x
  3. Step 3: Cross multiply
    39,004.68x = 53,826.52 × 21,099.64
  4. Step 4: Simplify right side
    39,004.68x = 1,135,720,194.45
  5. Step 5: Solve for x
    x = 1,135,720,194.45/39,004.68
  6. Step 6: Final answer
    x = 29,117.54

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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.