Home / 19,550.64-29,325.94-7,861.12

Finding the Fourth Proportional to 19,550.64, 29,325.94 and 7,861.12

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Solution

The fourth proportional to 19,550.64, 29,325.94 and 7,861.12 is: 11,791.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,550.64 : 29,325.94 = 7,861.12 : x
  2. Step 2: Convert to fraction form
    19,550.64/29,325.94 = 7,861.12/x
  3. Step 3: Cross multiply
    19,550.64x = 29,325.94 × 7,861.12
  4. Step 4: Simplify right side
    19,550.64x = 230,534,733.45
  5. Step 5: Solve for x
    x = 230,534,733.45/19,550.64
  6. Step 6: Final answer
    x = 11,791.67

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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.