Home / 20,381.85-30,577.37-7,234.22

Finding the Fourth Proportional to 20,381.85, 30,577.37 and 7,234.22

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Solution

The fourth proportional to 20,381.85, 30,577.37 and 7,234.22 is: 10,852.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,381.85 : 30,577.37 = 7,234.22 : x
  2. Step 2: Convert to fraction form
    20,381.85/30,577.37 = 7,234.22/x
  3. Step 3: Cross multiply
    20,381.85x = 30,577.37 × 7,234.22
  4. Step 4: Simplify right side
    20,381.85x = 221,203,421.60
  5. Step 5: Solve for x
    x = 221,203,421.60/20,381.85
  6. Step 6: Final answer
    x = 10,852.96

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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.