Home / 20,380.85-30,575.87-7,233.22

Finding the Fourth Proportional to 20,380.85, 30,575.87 and 7,233.22

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Solution

The fourth proportional to 20,380.85, 30,575.87 and 7,233.22 is: 10,851.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,380.85 : 30,575.87 = 7,233.22 : x
  2. Step 2: Convert to fraction form
    20,380.85/30,575.87 = 7,233.22/x
  3. Step 3: Cross multiply
    20,380.85x = 30,575.87 × 7,233.22
  4. Step 4: Simplify right side
    20,380.85x = 221,161,994.40
  5. Step 5: Solve for x
    x = 221,161,994.40/20,380.85
  6. Step 6: Final answer
    x = 10,851.46

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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.