Home / 20,586.33-30,861.02-7,435.62

Finding the Fourth Proportional to 20,586.33, 30,861.02 and 7,435.62

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Solution

The fourth proportional to 20,586.33, 30,861.02 and 7,435.62 is: 11,146.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,586.33 : 30,861.02 = 7,435.62 : x
  2. Step 2: Convert to fraction form
    20,586.33/30,861.02 = 7,435.62/x
  3. Step 3: Cross multiply
    20,586.33x = 30,861.02 × 7,435.62
  4. Step 4: Simplify right side
    20,586.33x = 229,470,836.12
  5. Step 5: Solve for x
    x = 229,470,836.12/20,586.33
  6. Step 6: Final answer
    x = 11,146.76

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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.