Home / 38,836.05-53,593.24-21,840.29

Finding the Fourth Proportional to 38,836.05, 53,593.24 and 21,840.29

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Solution

The fourth proportional to 38,836.05, 53,593.24 and 21,840.29 is: 30,139.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,836.05 : 53,593.24 = 21,840.29 : x
  2. Step 2: Convert to fraction form
    38,836.05/53,593.24 = 21,840.29/x
  3. Step 3: Cross multiply
    38,836.05x = 53,593.24 × 21,840.29
  4. Step 4: Simplify right side
    38,836.05x = 1,170,491,903.64
  5. Step 5: Solve for x
    x = 1,170,491,903.64/38,836.05
  6. Step 6: Final answer
    x = 30,139.31

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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.