Home / 28,074.91-42,134.37-19,586.21

Finding the Fourth Proportional to 28,074.91, 42,134.37 and 19,586.21

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Solution

The fourth proportional to 28,074.91, 42,134.37 and 19,586.21 is: 29,394.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,074.91 : 42,134.37 = 19,586.21 : x
  2. Step 2: Convert to fraction form
    28,074.91/42,134.37 = 19,586.21/x
  3. Step 3: Cross multiply
    28,074.91x = 42,134.37 × 19,586.21
  4. Step 4: Simplify right side
    28,074.91x = 825,252,590.85
  5. Step 5: Solve for x
    x = 825,252,590.85/28,074.91
  6. Step 6: Final answer
    x = 29,394.67

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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.