Home / 20,225.42-30,325.44-6,180.78

Finding the Fourth Proportional to 20,225.42, 30,325.44 and 6,180.78

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Solution

The fourth proportional to 20,225.42, 30,325.44 and 6,180.78 is: 9,267.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,225.42 : 30,325.44 = 6,180.78 : x
  2. Step 2: Convert to fraction form
    20,225.42/30,325.44 = 6,180.78/x
  3. Step 3: Cross multiply
    20,225.42x = 30,325.44 × 6,180.78
  4. Step 4: Simplify right side
    20,225.42x = 187,434,873.04
  5. Step 5: Solve for x
    x = 187,434,873.04/20,225.42
  6. Step 6: Final answer
    x = 9,267.29

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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.