Home / 20,003.63-30,002.67-5,211.34

Finding the Fourth Proportional to 20,003.63, 30,002.67 and 5,211.34

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Solution

The fourth proportional to 20,003.63, 30,002.67 and 5,211.34 is: 7,816.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,003.63 : 30,002.67 = 5,211.34 : x
  2. Step 2: Convert to fraction form
    20,003.63/30,002.67 = 5,211.34/x
  3. Step 3: Cross multiply
    20,003.63x = 30,002.67 × 5,211.34
  4. Step 4: Simplify right side
    20,003.63x = 156,354,039.27
  5. Step 5: Solve for x
    x = 156,354,039.27/20,003.63
  6. Step 6: Final answer
    x = 7,816.29

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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.