Home / 20,072.94-30,111.14-5,281.94

Finding the Fourth Proportional to 20,072.94, 30,111.14 and 5,281.94

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Solution

The fourth proportional to 20,072.94, 30,111.14 and 5,281.94 is: 7,923.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,072.94 : 30,111.14 = 5,281.94 : x
  2. Step 2: Convert to fraction form
    20,072.94/30,111.14 = 5,281.94/x
  3. Step 3: Cross multiply
    20,072.94x = 30,111.14 × 5,281.94
  4. Step 4: Simplify right side
    20,072.94x = 159,045,234.81
  5. Step 5: Solve for x
    x = 159,045,234.81/20,072.94
  6. Step 6: Final answer
    x = 7,923.37

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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.