Home / 20,338.46-28,066.26-11,840.83

Finding the Fourth Proportional to 20,338.46, 28,066.26 and 11,840.83

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Solution

The fourth proportional to 20,338.46, 28,066.26 and 11,840.83 is: 16,339.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,338.46 : 28,066.26 = 11,840.83 : x
  2. Step 2: Convert to fraction form
    20,338.46/28,066.26 = 11,840.83/x
  3. Step 3: Cross multiply
    20,338.46x = 28,066.26 × 11,840.83
  4. Step 4: Simplify right side
    20,338.46x = 332,327,698.83
  5. Step 5: Solve for x
    x = 332,327,698.83/20,338.46
  6. Step 6: Final answer
    x = 16,339.86

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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.