Home / 20,243.25-30,369.74-6,392.25

Finding the Fourth Proportional to 20,243.25, 30,369.74 and 6,392.25

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Solution

The fourth proportional to 20,243.25, 30,369.74 and 6,392.25 is: 9,589.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,243.25 : 30,369.74 = 6,392.25 : x
  2. Step 2: Convert to fraction form
    20,243.25/30,369.74 = 6,392.25/x
  3. Step 3: Cross multiply
    20,243.25x = 30,369.74 × 6,392.25
  4. Step 4: Simplify right side
    20,243.25x = 194,130,938.55
  5. Step 5: Solve for x
    x = 194,130,938.55/20,243.25
  6. Step 6: Final answer
    x = 9,589.91

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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.