Home / 38,995.14-53,815.75-21,993.18

Finding the Fourth Proportional to 38,995.14, 53,815.75 and 21,993.18

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Solution

The fourth proportional to 38,995.14, 53,815.75 and 21,993.18 is: 30,351.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,995.14 : 53,815.75 = 21,993.18 : x
  2. Step 2: Convert to fraction form
    38,995.14/53,815.75 = 21,993.18/x
  3. Step 3: Cross multiply
    38,995.14x = 53,815.75 × 21,993.18
  4. Step 4: Simplify right side
    38,995.14x = 1,183,579,247.28
  5. Step 5: Solve for x
    x = 1,183,579,247.28/38,995.14
  6. Step 6: Final answer
    x = 30,351.97

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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.