Home / 39,067.09-53,912.56-21,162.06

Finding the Fourth Proportional to 39,067.09, 53,912.56 and 21,162.06

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Solution

The fourth proportional to 39,067.09, 53,912.56 and 21,162.06 is: 29,203.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,067.09 : 53,912.56 = 21,162.06 : x
  2. Step 2: Convert to fraction form
    39,067.09/53,912.56 = 21,162.06/x
  3. Step 3: Cross multiply
    39,067.09x = 53,912.56 × 21,162.06
  4. Step 4: Simplify right side
    39,067.09x = 1,140,900,829.47
  5. Step 5: Solve for x
    x = 1,140,900,829.47/39,067.09
  6. Step 6: Final answer
    x = 29,203.63

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1.5x scale

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.