Home / 20,043.04-30,031.68-13,367.20

Finding the Fourth Proportional to 20,043.04, 30,031.68 and 13,367.20

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Solution

The fourth proportional to 20,043.04, 30,031.68 and 13,367.20 is: 20,028.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,043.04 : 30,031.68 = 13,367.20 : x
  2. Step 2: Convert to fraction form
    20,043.04/30,031.68 = 13,367.20/x
  3. Step 3: Cross multiply
    20,043.04x = 30,031.68 × 13,367.20
  4. Step 4: Simplify right side
    20,043.04x = 401,439,472.90
  5. Step 5: Solve for x
    x = 401,439,472.90/20,043.04
  6. Step 6: Final answer
    x = 20,028.87

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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.