Home / 20,049.30-30,073.96-12,664.98

Finding the Fourth Proportional to 20,049.30, 30,073.96 and 12,664.98

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Solution

The fourth proportional to 20,049.30, 30,073.96 and 12,664.98 is: 18,997.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,049.30 : 30,073.96 = 12,664.98 : x
  2. Step 2: Convert to fraction form
    20,049.30/30,073.96 = 12,664.98/x
  3. Step 3: Cross multiply
    20,049.30x = 30,073.96 × 12,664.98
  4. Step 4: Simplify right side
    20,049.30x = 380,886,101.92
  5. Step 5: Solve for x
    x = 380,886,101.92/20,049.30
  6. Step 6: Final answer
    x = 18,997.48

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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.