Home / 20,381.89-30,575.87-7,233.16

Finding the Fourth Proportional to 20,381.89, 30,575.87 and 7,233.16

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Solution

The fourth proportional to 20,381.89, 30,575.87 and 7,233.16 is: 10,850.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,381.89 : 30,575.87 = 7,233.16 : x
  2. Step 2: Convert to fraction form
    20,381.89/30,575.87 = 7,233.16/x
  3. Step 3: Cross multiply
    20,381.89x = 30,575.87 × 7,233.16
  4. Step 4: Simplify right side
    20,381.89x = 221,160,074.37
  5. Step 5: Solve for x
    x = 221,160,074.37/20,381.89
  6. Step 6: Final answer
    x = 10,850.81

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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.