Home / 20,555.24-30,820.90-8,060.62

Finding the Fourth Proportional to 20,555.24, 30,820.90 and 8,060.62

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Solution

The fourth proportional to 20,555.24, 30,820.90 and 8,060.62 is: 12,086.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,555.24 : 30,820.90 = 8,060.62 : x
  2. Step 2: Convert to fraction form
    20,555.24/30,820.90 = 8,060.62/x
  3. Step 3: Cross multiply
    20,555.24x = 30,820.90 × 8,060.62
  4. Step 4: Simplify right side
    20,555.24x = 248,435,562.96
  5. Step 5: Solve for x
    x = 248,435,562.96/20,555.24
  6. Step 6: Final answer
    x = 12,086.24

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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.