Home / 38,924.36-53,715.78-21,928.81

Finding the Fourth Proportional to 38,924.36, 53,715.78 and 21,928.81

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Solution

The fourth proportional to 38,924.36, 53,715.78 and 21,928.81 is: 30,261.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,924.36 : 53,715.78 = 21,928.81 : x
  2. Step 2: Convert to fraction form
    38,924.36/53,715.78 = 21,928.81/x
  3. Step 3: Cross multiply
    38,924.36x = 53,715.78 × 21,928.81
  4. Step 4: Simplify right side
    38,924.36x = 1,177,922,865.04
  5. Step 5: Solve for x
    x = 1,177,922,865.04/38,924.36
  6. Step 6: Final answer
    x = 30,261.84

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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.