Home / 22,540.60-31,016.34-21,855.79

Finding the Fourth Proportional to 22,540.60, 31,016.34 and 21,855.79

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Solution

The fourth proportional to 22,540.60, 31,016.34 and 21,855.79 is: 30,074.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,540.60 : 31,016.34 = 21,855.79 : x
  2. Step 2: Convert to fraction form
    22,540.60/31,016.34 = 21,855.79/x
  3. Step 3: Cross multiply
    22,540.60x = 31,016.34 × 21,855.79
  4. Step 4: Simplify right side
    22,540.60x = 677,886,613.61
  5. Step 5: Solve for x
    x = 677,886,613.61/22,540.60
  6. Step 6: Final answer
    x = 30,074.03

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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.