Home / 19,583.70-29,379.27-6,439.86

Finding the Fourth Proportional to 19,583.70, 29,379.27 and 6,439.86

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Solution

The fourth proportional to 19,583.70, 29,379.27 and 6,439.86 is: 9,661.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,583.70 : 29,379.27 = 6,439.86 : x
  2. Step 2: Convert to fraction form
    19,583.70/29,379.27 = 6,439.86/x
  3. Step 3: Cross multiply
    19,583.70x = 29,379.27 × 6,439.86
  4. Step 4: Simplify right side
    19,583.70x = 189,198,385.70
  5. Step 5: Solve for x
    x = 189,198,385.70/19,583.70
  6. Step 6: Final answer
    x = 9,661.01

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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.