Home / 20,274.12-30,412.36-19,170.88

Finding the Fourth Proportional to 20,274.12, 30,412.36 and 19,170.88

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Solution

The fourth proportional to 20,274.12, 30,412.36 and 19,170.88 is: 28,757.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,274.12 : 30,412.36 = 19,170.88 : x
  2. Step 2: Convert to fraction form
    20,274.12/30,412.36 = 19,170.88/x
  3. Step 3: Cross multiply
    20,274.12x = 30,412.36 × 19,170.88
  4. Step 4: Simplify right side
    20,274.12x = 583,031,704.08
  5. Step 5: Solve for x
    x = 583,031,704.08/20,274.12
  6. Step 6: Final answer
    x = 28,757.44

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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.