Home / 27,958.50-38,583-15,383.52

Finding the Fourth Proportional to 27,958.50, 38,583 and 15,383.52

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Solution

The fourth proportional to 27,958.50, 38,583 and 15,383.52 is: 21,229.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,958.50 : 38,583 = 15,383.52 : x
  2. Step 2: Convert to fraction form
    27,958.50/38,583 = 15,383.52/x
  3. Step 3: Cross multiply
    27,958.50x = 38,583 × 15,383.52
  4. Step 4: Simplify right side
    27,958.50x = 593,542,352.16
  5. Step 5: Solve for x
    x = 593,542,352.16/27,958.50
  6. Step 6: Final answer
    x = 21,229.41

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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.