Home / 34,212.96-51,315.12-13,451.04

Finding the Fourth Proportional to 34,212.96, 51,315.12 and 13,451.04

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Solution

The fourth proportional to 34,212.96, 51,315.12 and 13,451.04 is: 20,174.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    34,212.96 : 51,315.12 = 13,451.04 : x
  2. Step 2: Convert to fraction form
    34,212.96/51,315.12 = 13,451.04/x
  3. Step 3: Cross multiply
    34,212.96x = 51,315.12 × 13,451.04
  4. Step 4: Simplify right side
    34,212.96x = 690,241,731.72
  5. Step 5: Solve for x
    x = 690,241,731.72/34,212.96
  6. Step 6: Final answer
    x = 20,174.86

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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.