Home / 20,304.35-28,023.46-11,811.39

Finding the Fourth Proportional to 20,304.35, 28,023.46 and 11,811.39

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Solution

The fourth proportional to 20,304.35, 28,023.46 and 11,811.39 is: 16,301.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,304.35 : 28,023.46 = 11,811.39 : x
  2. Step 2: Convert to fraction form
    20,304.35/28,023.46 = 11,811.39/x
  3. Step 3: Cross multiply
    20,304.35x = 28,023.46 × 11,811.39
  4. Step 4: Simplify right side
    20,304.35x = 330,996,015.21
  5. Step 5: Solve for x
    x = 330,996,015.21/20,304.35
  6. Step 6: Final answer
    x = 16,301.73

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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.