Home / 19,412.82-29,121.18-7,723.32

Finding the Fourth Proportional to 19,412.82, 29,121.18 and 7,723.32

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Solution

The fourth proportional to 19,412.82, 29,121.18 and 7,723.32 is: 11,585.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,412.82 : 29,121.18 = 7,723.32 : x
  2. Step 2: Convert to fraction form
    19,412.82/29,121.18 = 7,723.32/x
  3. Step 3: Cross multiply
    19,412.82x = 29,121.18 × 7,723.32
  4. Step 4: Simplify right side
    19,412.82x = 224,912,191.92
  5. Step 5: Solve for x
    x = 224,912,191.92/19,412.82
  6. Step 6: Final answer
    x = 11,585.76

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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.