Home / 39,874.33-55,026.73-21,968.95

Finding the Fourth Proportional to 39,874.33, 55,026.73 and 21,968.95

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Solution

The fourth proportional to 39,874.33, 55,026.73 and 21,968.95 is: 30,317.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,874.33 : 55,026.73 = 21,968.95 : x
  2. Step 2: Convert to fraction form
    39,874.33/55,026.73 = 21,968.95/x
  3. Step 3: Cross multiply
    39,874.33x = 55,026.73 × 21,968.95
  4. Step 4: Simplify right side
    39,874.33x = 1,208,879,480.03
  5. Step 5: Solve for x
    x = 1,208,879,480.03/39,874.33
  6. Step 6: Final answer
    x = 30,317.24

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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.