Home / 13,431.41-20,147.48-3,570.67

Finding the Fourth Proportional to 13,431.41, 20,147.48 and 3,570.67

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Solution

The fourth proportional to 13,431.41, 20,147.48 and 3,570.67 is: 5,356.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,431.41 : 20,147.48 = 3,570.67 : x
  2. Step 2: Convert to fraction form
    13,431.41/20,147.48 = 3,570.67/x
  3. Step 3: Cross multiply
    13,431.41x = 20,147.48 × 3,570.67
  4. Step 4: Simplify right side
    13,431.41x = 71,940,002.41
  5. Step 5: Solve for x
    x = 71,940,002.41/13,431.41
  6. Step 6: Final answer
    x = 5,356.10

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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.