Home / 20,568.81-30,853.39-4,986.44

Finding the Fourth Proportional to 20,568.81, 30,853.39 and 4,986.44

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Solution

The fourth proportional to 20,568.81, 30,853.39 and 4,986.44 is: 7,479.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,568.81 : 30,853.39 = 4,986.44 : x
  2. Step 2: Convert to fraction form
    20,568.81/30,853.39 = 4,986.44/x
  3. Step 3: Cross multiply
    20,568.81x = 30,853.39 × 4,986.44
  4. Step 4: Simplify right side
    20,568.81x = 153,848,578.03
  5. Step 5: Solve for x
    x = 153,848,578.03/20,568.81
  6. Step 6: Final answer
    x = 7,479.70

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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.