Home / 20,141.36-30,211.44-11,814.98

Finding the Fourth Proportional to 20,141.36, 30,211.44 and 11,814.98

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Solution

The fourth proportional to 20,141.36, 30,211.44 and 11,814.98 is: 17,722.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,141.36 : 30,211.44 = 11,814.98 : x
  2. Step 2: Convert to fraction form
    20,141.36/30,211.44 = 11,814.98/x
  3. Step 3: Cross multiply
    20,141.36x = 30,211.44 × 11,814.98
  4. Step 4: Simplify right side
    20,141.36x = 356,947,559.37
  5. Step 5: Solve for x
    x = 356,947,559.37/20,141.36
  6. Step 6: Final answer
    x = 17,722.12

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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.