Home / 38,883.75-53,659.69-21,888.26

Finding the Fourth Proportional to 38,883.75, 53,659.69 and 21,888.26

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Solution

The fourth proportional to 38,883.75, 53,659.69 and 21,888.26 is: 30,205.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,883.75 : 53,659.69 = 21,888.26 : x
  2. Step 2: Convert to fraction form
    38,883.75/53,659.69 = 21,888.26/x
  3. Step 3: Cross multiply
    38,883.75x = 53,659.69 × 21,888.26
  4. Step 4: Simplify right side
    38,883.75x = 1,174,517,124.44
  5. Step 5: Solve for x
    x = 1,174,517,124.44/38,883.75
  6. Step 6: Final answer
    x = 30,205.86

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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.