Home / 38,995.64-53,816.44-21,993.68

Finding the Fourth Proportional to 38,995.64, 53,816.44 and 21,993.68

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Solution

The fourth proportional to 38,995.64, 53,816.44 and 21,993.68 is: 30,352.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,995.64 : 53,816.44 = 21,993.68 : x
  2. Step 2: Convert to fraction form
    38,995.64/53,816.44 = 21,993.68/x
  3. Step 3: Cross multiply
    38,995.64x = 53,816.44 × 21,993.68
  4. Step 4: Simplify right side
    38,995.64x = 1,183,621,291.02
  5. Step 5: Solve for x
    x = 1,183,621,291.02/38,995.64
  6. Step 6: Final answer
    x = 30,352.66

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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.