Home / 20,344.57-30,491.34-10,984.21

Finding the Fourth Proportional to 20,344.57, 30,491.34 and 10,984.21

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Solution

The fourth proportional to 20,344.57, 30,491.34 and 10,984.21 is: 16,462.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,344.57 : 30,491.34 = 10,984.21 : x
  2. Step 2: Convert to fraction form
    20,344.57/30,491.34 = 10,984.21/x
  3. Step 3: Cross multiply
    20,344.57x = 30,491.34 × 10,984.21
  4. Step 4: Simplify right side
    20,344.57x = 334,923,164.32
  5. Step 5: Solve for x
    x = 334,923,164.32/20,344.57
  6. Step 6: Final answer
    x = 16,462.54

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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.