Home / 38,101.97-52,580.71-21,107.31

Finding the Fourth Proportional to 38,101.97, 52,580.71 and 21,107.31

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Solution

The fourth proportional to 38,101.97, 52,580.71 and 21,107.31 is: 29,128.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,101.97 : 52,580.71 = 21,107.31 : x
  2. Step 2: Convert to fraction form
    38,101.97/52,580.71 = 21,107.31/x
  3. Step 3: Cross multiply
    38,101.97x = 52,580.71 × 21,107.31
  4. Step 4: Simplify right side
    38,101.97x = 1,109,837,544.90
  5. Step 5: Solve for x
    x = 1,109,837,544.90/38,101.97
  6. Step 6: Final answer
    x = 29,128.09

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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.