Home / 20,322.85-30,487.44-12,008.86

Finding the Fourth Proportional to 20,322.85, 30,487.44 and 12,008.86

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Solution

The fourth proportional to 20,322.85, 30,487.44 and 12,008.86 is: 18,015.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,322.85 : 30,487.44 = 12,008.86 : x
  2. Step 2: Convert to fraction form
    20,322.85/30,487.44 = 12,008.86/x
  3. Step 3: Cross multiply
    20,322.85x = 30,487.44 × 12,008.86
  4. Step 4: Simplify right side
    20,322.85x = 366,119,299.98
  5. Step 5: Solve for x
    x = 366,119,299.98/20,322.85
  6. Step 6: Final answer
    x = 18,015.16

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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.