Home / 39,081.33-53,932.19-21,176.33

Finding the Fourth Proportional to 39,081.33, 53,932.19 and 21,176.33

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Solution

The fourth proportional to 39,081.33, 53,932.19 and 21,176.33 is: 29,223.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,081.33 : 53,932.19 = 21,176.33 : x
  2. Step 2: Convert to fraction form
    39,081.33/53,932.19 = 21,176.33/x
  3. Step 3: Cross multiply
    39,081.33x = 53,932.19 × 21,176.33
  4. Step 4: Simplify right side
    39,081.33x = 1,142,085,952.84
  5. Step 5: Solve for x
    x = 1,142,085,952.84/39,081.33
  6. Step 6: Final answer
    x = 29,223.32

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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.