Home / 20,944.04-31,415.99-5,149.13

Finding the Fourth Proportional to 20,944.04, 31,415.99 and 5,149.13

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Solution

The fourth proportional to 20,944.04, 31,415.99 and 5,149.13 is: 7,723.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,944.04 : 31,415.99 = 5,149.13 : x
  2. Step 2: Convert to fraction form
    20,944.04/31,415.99 = 5,149.13/x
  3. Step 3: Cross multiply
    20,944.04x = 31,415.99 × 5,149.13
  4. Step 4: Simplify right side
    20,944.04x = 161,764,833.76
  5. Step 5: Solve for x
    x = 161,764,833.76/20,944.04
  6. Step 6: Final answer
    x = 7,723.67

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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.