Home / 20,304.41-28,023.55-11,811.46

Finding the Fourth Proportional to 20,304.41, 28,023.55 and 11,811.46

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Solution

The fourth proportional to 20,304.41, 28,023.55 and 11,811.46 is: 16,301.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,304.41 : 28,023.55 = 11,811.46 : x
  2. Step 2: Convert to fraction form
    20,304.41/28,023.55 = 11,811.46/x
  3. Step 3: Cross multiply
    20,304.41x = 28,023.55 × 11,811.46
  4. Step 4: Simplify right side
    20,304.41x = 330,999,039.88
  5. Step 5: Solve for x
    x = 330,999,039.88/20,304.41
  6. Step 6: Final answer
    x = 16,301.83

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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.