Home / 39,004.79-53,826.56-21,099.75

Finding the Fourth Proportional to 39,004.79, 53,826.56 and 21,099.75

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Solution

The fourth proportional to 39,004.79, 53,826.56 and 21,099.75 is: 29,117.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,004.79 : 53,826.56 = 21,099.75 : x
  2. Step 2: Convert to fraction form
    39,004.79/53,826.56 = 21,099.75/x
  3. Step 3: Cross multiply
    39,004.79x = 53,826.56 × 21,099.75
  4. Step 4: Simplify right side
    39,004.79x = 1,135,726,731.14
  5. Step 5: Solve for x
    x = 1,135,726,731.14/39,004.79
  6. Step 6: Final answer
    x = 29,117.63

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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.