Home / 38,880.05-53,653.86-21,884.33

Finding the Fourth Proportional to 38,880.05, 53,653.86 and 21,884.33

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Solution

The fourth proportional to 38,880.05, 53,653.86 and 21,884.33 is: 30,200.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,880.05 : 53,653.86 = 21,884.33 : x
  2. Step 2: Convert to fraction form
    38,880.05/53,653.86 = 21,884.33/x
  3. Step 3: Cross multiply
    38,880.05x = 53,653.86 × 21,884.33
  4. Step 4: Simplify right side
    38,880.05x = 1,174,178,912.15
  5. Step 5: Solve for x
    x = 1,174,178,912.15/38,880.05
  6. Step 6: Final answer
    x = 30,200.04

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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.