Home / 20,040.39-30,040.56-9,491.67

Finding the Fourth Proportional to 20,040.39, 30,040.56 and 9,491.67

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Solution

The fourth proportional to 20,040.39, 30,040.56 and 9,491.67 is: 14,228.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,040.39 : 30,040.56 = 9,491.67 : x
  2. Step 2: Convert to fraction form
    20,040.39/30,040.56 = 9,491.67/x
  3. Step 3: Cross multiply
    20,040.39x = 30,040.56 × 9,491.67
  4. Step 4: Simplify right side
    20,040.39x = 285,135,082.14
  5. Step 5: Solve for x
    x = 285,135,082.14/20,040.39
  6. Step 6: Final answer
    x = 14,228.02

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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.