Home / 39,067.80-53,913.54-21,162.87

Finding the Fourth Proportional to 39,067.80, 53,913.54 and 21,162.87

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Solution

The fourth proportional to 39,067.80, 53,913.54 and 21,162.87 is: 29,204.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,067.80 : 53,913.54 = 21,162.87 : x
  2. Step 2: Convert to fraction form
    39,067.80/53,913.54 = 21,162.87/x
  3. Step 3: Cross multiply
    39,067.80x = 53,913.54 × 21,162.87
  4. Step 4: Simplify right side
    39,067.80x = 1,140,965,238.26
  5. Step 5: Solve for x
    x = 1,140,965,238.26/39,067.80
  6. Step 6: Final answer
    x = 29,204.75

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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.