Home / 39,826.31-54,961.40-21,922.43

Finding the Fourth Proportional to 39,826.31, 54,961.40 and 21,922.43

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Solution

The fourth proportional to 39,826.31, 54,961.40 and 21,922.43 is: 30,253.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,826.31 : 54,961.40 = 21,922.43 : x
  2. Step 2: Convert to fraction form
    39,826.31/54,961.40 = 21,922.43/x
  3. Step 3: Cross multiply
    39,826.31x = 54,961.40 × 21,922.43
  4. Step 4: Simplify right side
    39,826.31x = 1,204,887,224.20
  5. Step 5: Solve for x
    x = 1,204,887,224.20/39,826.31
  6. Step 6: Final answer
    x = 30,253.55

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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.