Home / 20,914.44-31,374.81-6,121.50

Finding the Fourth Proportional to 20,914.44, 31,374.81 and 6,121.50

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Solution

The fourth proportional to 20,914.44, 31,374.81 and 6,121.50 is: 9,183.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,914.44 : 31,374.81 = 6,121.50 : x
  2. Step 2: Convert to fraction form
    20,914.44/31,374.81 = 6,121.50/x
  3. Step 3: Cross multiply
    20,914.44x = 31,374.81 × 6,121.50
  4. Step 4: Simplify right side
    20,914.44x = 192,060,899.42
  5. Step 5: Solve for x
    x = 192,060,899.42/20,914.44
  6. Step 6: Final answer
    x = 9,183.17

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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.