Home / 19,626.57-29,439.72-7,939.62

Finding the Fourth Proportional to 19,626.57, 29,439.72 and 7,939.62

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Solution

The fourth proportional to 19,626.57, 29,439.72 and 7,939.62 is: 11,909.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,626.57 : 29,439.72 = 7,939.62 : x
  2. Step 2: Convert to fraction form
    19,626.57/29,439.72 = 7,939.62/x
  3. Step 3: Cross multiply
    19,626.57x = 29,439.72 × 7,939.62
  4. Step 4: Simplify right side
    19,626.57x = 233,740,189.71
  5. Step 5: Solve for x
    x = 233,740,189.71/19,626.57
  6. Step 6: Final answer
    x = 11,909.38

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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.