Home / 20,738.67-31,112.41-6,699.50

Finding the Fourth Proportional to 20,738.67, 31,112.41 and 6,699.50

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Solution

The fourth proportional to 20,738.67, 31,112.41 and 6,699.50 is: 10,050.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,738.67 : 31,112.41 = 6,699.50 : x
  2. Step 2: Convert to fraction form
    20,738.67/31,112.41 = 6,699.50/x
  3. Step 3: Cross multiply
    20,738.67x = 31,112.41 × 6,699.50
  4. Step 4: Simplify right side
    20,738.67x = 208,437,590.80
  5. Step 5: Solve for x
    x = 208,437,590.80/20,738.67
  6. Step 6: Final answer
    x = 10,050.67

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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.