Home / 20,054.30-30,081.46-12,669.98

Finding the Fourth Proportional to 20,054.30, 30,081.46 and 12,669.98

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Solution

The fourth proportional to 20,054.30, 30,081.46 and 12,669.98 is: 19,004.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,054.30 : 30,081.46 = 12,669.98 : x
  2. Step 2: Convert to fraction form
    20,054.30/30,081.46 = 12,669.98/x
  3. Step 3: Cross multiply
    20,054.30x = 30,081.46 × 12,669.98
  4. Step 4: Simplify right side
    20,054.30x = 381,131,496.57
  5. Step 5: Solve for x
    x = 381,131,496.57/20,054.30
  6. Step 6: Final answer
    x = 19,004.98

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Similar ratio
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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.