Home / 39,791.07-54,911.57-21,886.29

Finding the Fourth Proportional to 39,791.07, 54,911.57 and 21,886.29

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Solution

The fourth proportional to 39,791.07, 54,911.57 and 21,886.29 is: 30,203.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,791.07 : 54,911.57 = 21,886.29 : x
  2. Step 2: Convert to fraction form
    39,791.07/54,911.57 = 21,886.29/x
  3. Step 3: Cross multiply
    39,791.07x = 54,911.57 × 21,886.29
  4. Step 4: Simplify right side
    39,791.07x = 1,201,810,435.94
  5. Step 5: Solve for x
    x = 1,201,810,435.94/39,791.07
  6. Step 6: Final answer
    x = 30,203.02

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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.