Home / 39,826.56-54,959.37-21,921.58

Finding the Fourth Proportional to 39,826.56, 54,959.37 and 21,921.58

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Solution

The fourth proportional to 39,826.56, 54,959.37 and 21,921.58 is: 30,251.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,826.56 : 54,959.37 = 21,921.58 : x
  2. Step 2: Convert to fraction form
    39,826.56/54,959.37 = 21,921.58/x
  3. Step 3: Cross multiply
    39,826.56x = 54,959.37 × 21,921.58
  4. Step 4: Simplify right side
    39,826.56x = 1,204,796,226.20
  5. Step 5: Solve for x
    x = 1,204,796,226.20/39,826.56
  6. Step 6: Final answer
    x = 30,251.07

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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.