Home / 38,783.33-53,521.21-21,788.29

Finding the Fourth Proportional to 38,783.33, 53,521.21 and 21,788.29

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Solution

The fourth proportional to 38,783.33, 53,521.21 and 21,788.29 is: 30,067.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,783.33 : 53,521.21 = 21,788.29 : x
  2. Step 2: Convert to fraction form
    38,783.33/53,521.21 = 21,788.29/x
  3. Step 3: Cross multiply
    38,783.33x = 53,521.21 × 21,788.29
  4. Step 4: Simplify right side
    38,783.33x = 1,166,135,616.21
  5. Step 5: Solve for x
    x = 1,166,135,616.21/38,783.33
  6. Step 6: Final answer
    x = 30,067.96

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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.