Home / 20,334.89-30,500.52-7,186.61

Finding the Fourth Proportional to 20,334.89, 30,500.52 and 7,186.61

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Solution

The fourth proportional to 20,334.89, 30,500.52 and 7,186.61 is: 10,779.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,334.89 : 30,500.52 = 7,186.61 : x
  2. Step 2: Convert to fraction form
    20,334.89/30,500.52 = 7,186.61/x
  3. Step 3: Cross multiply
    20,334.89x = 30,500.52 × 7,186.61
  4. Step 4: Simplify right side
    20,334.89x = 219,195,189.53
  5. Step 5: Solve for x
    x = 219,195,189.53/20,334.89
  6. Step 6: Final answer
    x = 10,779.27

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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.