Home / 20,527.21-28,327.87-12,027.30

Finding the Fourth Proportional to 20,527.21, 28,327.87 and 12,027.30

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Solution

The fourth proportional to 20,527.21, 28,327.87 and 12,027.30 is: 16,597.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,527.21 : 28,327.87 = 12,027.30 : x
  2. Step 2: Convert to fraction form
    20,527.21/28,327.87 = 12,027.30/x
  3. Step 3: Cross multiply
    20,527.21x = 28,327.87 × 12,027.30
  4. Step 4: Simplify right side
    20,527.21x = 340,707,790.85
  5. Step 5: Solve for x
    x = 340,707,790.85/20,527.21
  6. Step 6: Final answer
    x = 16,597.86

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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.