Home / 20,578.45-30,867.44-4,996.07

Finding the Fourth Proportional to 20,578.45, 30,867.44 and 4,996.07

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Solution

The fourth proportional to 20,578.45, 30,867.44 and 4,996.07 is: 7,494.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,578.45 : 30,867.44 = 4,996.07 : x
  2. Step 2: Convert to fraction form
    20,578.45/30,867.44 = 4,996.07/x
  3. Step 3: Cross multiply
    20,578.45x = 30,867.44 × 4,996.07
  4. Step 4: Simplify right side
    20,578.45x = 154,215,890.96
  5. Step 5: Solve for x
    x = 154,215,890.96/20,578.45
  6. Step 6: Final answer
    x = 7,494.05

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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.