Home / 39,258.42-54,177.31-21,353.73

Finding the Fourth Proportional to 39,258.42, 54,177.31 and 21,353.73

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Solution

The fourth proportional to 39,258.42, 54,177.31 and 21,353.73 is: 29,468.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,258.42 : 54,177.31 = 21,353.73 : x
  2. Step 2: Convert to fraction form
    39,258.42/54,177.31 = 21,353.73/x
  3. Step 3: Cross multiply
    39,258.42x = 54,177.31 × 21,353.73
  4. Step 4: Simplify right side
    39,258.42x = 1,156,887,353.28
  5. Step 5: Solve for x
    x = 1,156,887,353.28/39,258.42
  6. Step 6: Final answer
    x = 29,468.51

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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.