Home / 20,540.64-30,811.03-4,958.26

Finding the Fourth Proportional to 20,540.64, 30,811.03 and 4,958.26

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Solution

The fourth proportional to 20,540.64, 30,811.03 and 4,958.26 is: 7,437.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,540.64 : 30,811.03 = 4,958.26 : x
  2. Step 2: Convert to fraction form
    20,540.64/30,811.03 = 4,958.26/x
  3. Step 3: Cross multiply
    20,540.64x = 30,811.03 × 4,958.26
  4. Step 4: Simplify right side
    20,540.64x = 152,769,209.39
  5. Step 5: Solve for x
    x = 152,769,209.39/20,540.64
  6. Step 6: Final answer
    x = 7,437.41

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.