Home / 38,853.33-53,617.52-21,857.58

Finding the Fourth Proportional to 38,853.33, 53,617.52 and 21,857.58

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Solution

The fourth proportional to 38,853.33, 53,617.52 and 21,857.58 is: 30,163.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,853.33 : 53,617.52 = 21,857.58 : x
  2. Step 2: Convert to fraction form
    38,853.33/53,617.52 = 21,857.58/x
  3. Step 3: Cross multiply
    38,853.33x = 53,617.52 × 21,857.58
  4. Step 4: Simplify right side
    38,853.33x = 1,171,949,123.51
  5. Step 5: Solve for x
    x = 1,171,949,123.51/38,853.33
  6. Step 6: Final answer
    x = 30,163.42

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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.