Home / 20,257.75-30,384.33-5,465.80

Finding the Fourth Proportional to 20,257.75, 30,384.33 and 5,465.80

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Solution

The fourth proportional to 20,257.75, 30,384.33 and 5,465.80 is: 8,198.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,257.75 : 30,384.33 = 5,465.80 : x
  2. Step 2: Convert to fraction form
    20,257.75/30,384.33 = 5,465.80/x
  3. Step 3: Cross multiply
    20,257.75x = 30,384.33 × 5,465.80
  4. Step 4: Simplify right side
    20,257.75x = 166,074,670.91
  5. Step 5: Solve for x
    x = 166,074,670.91/20,257.75
  6. Step 6: Final answer
    x = 8,198.08

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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.