Home / 20,028.80-30,043.20-6,177.92

Finding the Fourth Proportional to 20,028.80, 30,043.20 and 6,177.92

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Solution

The fourth proportional to 20,028.80, 30,043.20 and 6,177.92 is: 9,266.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,028.80 : 30,043.20 = 6,177.92 : x
  2. Step 2: Convert to fraction form
    20,028.80/30,043.20 = 6,177.92/x
  3. Step 3: Cross multiply
    20,028.80x = 30,043.20 × 6,177.92
  4. Step 4: Simplify right side
    20,028.80x = 185,604,486.14
  5. Step 5: Solve for x
    x = 185,604,486.14/20,028.80
  6. Step 6: Final answer
    x = 9,266.88

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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.