Home / 39,788.25-54,894.31-22,558.78

Finding the Fourth Proportional to 39,788.25, 54,894.31 and 22,558.78

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Solution

The fourth proportional to 39,788.25, 54,894.31 and 22,558.78 is: 31,123.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,788.25 : 54,894.31 = 22,558.78 : x
  2. Step 2: Convert to fraction form
    39,788.25/54,894.31 = 22,558.78/x
  3. Step 3: Cross multiply
    39,788.25x = 54,894.31 × 22,558.78
  4. Step 4: Simplify right side
    39,788.25x = 1,238,348,662.54
  5. Step 5: Solve for x
    x = 1,238,348,662.54/39,788.25
  6. Step 6: Final answer
    x = 31,123.48

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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.