Home / 20,111.76-30,171.83-6,072.57

Finding the Fourth Proportional to 20,111.76, 30,171.83 and 6,072.57

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Solution

The fourth proportional to 20,111.76, 30,171.83 and 6,072.57 is: 9,110.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,111.76 : 30,171.83 = 6,072.57 : x
  2. Step 2: Convert to fraction form
    20,111.76/30,171.83 = 6,072.57/x
  3. Step 3: Cross multiply
    20,111.76x = 30,171.83 × 6,072.57
  4. Step 4: Simplify right side
    20,111.76x = 183,220,519.34
  5. Step 5: Solve for x
    x = 183,220,519.34/20,111.76
  6. Step 6: Final answer
    x = 9,110.12

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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.