Home / 39,163.61-54,044.31-21,258.23

Finding the Fourth Proportional to 39,163.61, 54,044.31 and 21,258.23

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Solution

The fourth proportional to 39,163.61, 54,044.31 and 21,258.23 is: 29,335.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,163.61 : 54,044.31 = 21,258.23 : x
  2. Step 2: Convert to fraction form
    39,163.61/54,044.31 = 21,258.23/x
  3. Step 3: Cross multiply
    39,163.61x = 54,044.31 × 21,258.23
  4. Step 4: Simplify right side
    39,163.61x = 1,148,886,101.95
  5. Step 5: Solve for x
    x = 1,148,886,101.95/39,163.61
  6. Step 6: Final answer
    x = 29,335.56

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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.