Home / 20,049.32-30,014.06-12,127.87

Finding the Fourth Proportional to 20,049.32, 30,014.06 and 12,127.87

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Solution

The fourth proportional to 20,049.32, 30,014.06 and 12,127.87 is: 18,155.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,049.32 : 30,014.06 = 12,127.87 : x
  2. Step 2: Convert to fraction form
    20,049.32/30,014.06 = 12,127.87/x
  3. Step 3: Cross multiply
    20,049.32x = 30,014.06 × 12,127.87
  4. Step 4: Simplify right side
    20,049.32x = 364,006,467.78
  5. Step 5: Solve for x
    x = 364,006,467.78/20,049.32
  6. Step 6: Final answer
    x = 18,155.55

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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.