Home / 20,193.64-30,288.72-12,294.11

Finding the Fourth Proportional to 20,193.64, 30,288.72 and 12,294.11

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Solution

The fourth proportional to 20,193.64, 30,288.72 and 12,294.11 is: 18,440.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,193.64 : 30,288.72 = 12,294.11 : x
  2. Step 2: Convert to fraction form
    20,193.64/30,288.72 = 12,294.11/x
  3. Step 3: Cross multiply
    20,193.64x = 30,288.72 × 12,294.11
  4. Step 4: Simplify right side
    20,193.64x = 372,372,855.44
  5. Step 5: Solve for x
    x = 372,372,855.44/20,193.64
  6. Step 6: Final answer
    x = 18,440.11

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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.