Home / 20,269.82-30,438.44-12,527.84

Finding the Fourth Proportional to 20,269.82, 30,438.44 and 12,527.84

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Solution

The fourth proportional to 20,269.82, 30,438.44 and 12,527.84 is: 18,812.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,269.82 : 30,438.44 = 12,527.84 : x
  2. Step 2: Convert to fraction form
    20,269.82/30,438.44 = 12,527.84/x
  3. Step 3: Cross multiply
    20,269.82x = 30,438.44 × 12,527.84
  4. Step 4: Simplify right side
    20,269.82x = 381,327,906.17
  5. Step 5: Solve for x
    x = 381,327,906.17/20,269.82
  6. Step 6: Final answer
    x = 18,812.59

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1.5x scale

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.