Home / 13,953.24-20,929.42-3,423.30

Finding the Fourth Proportional to 13,953.24, 20,929.42 and 3,423.30

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Solution

The fourth proportional to 13,953.24, 20,929.42 and 3,423.30 is: 5,134.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,953.24 : 20,929.42 = 3,423.30 : x
  2. Step 2: Convert to fraction form
    13,953.24/20,929.42 = 3,423.30/x
  3. Step 3: Cross multiply
    13,953.24x = 20,929.42 × 3,423.30
  4. Step 4: Simplify right side
    13,953.24x = 71,647,683.49
  5. Step 5: Solve for x
    x = 71,647,683.49/13,953.24
  6. Step 6: Final answer
    x = 5,134.84

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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.