Home / 38,940.96-58,429.86-20,211.04

Finding the Fourth Proportional to 38,940.96, 58,429.86 and 20,211.04

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Solution

The fourth proportional to 38,940.96, 58,429.86 and 20,211.04 is: 30,326.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,940.96 : 58,429.86 = 20,211.04 : x
  2. Step 2: Convert to fraction form
    38,940.96/58,429.86 = 20,211.04/x
  3. Step 3: Cross multiply
    38,940.96x = 58,429.86 × 20,211.04
  4. Step 4: Simplify right side
    38,940.96x = 1,180,928,237.65
  5. Step 5: Solve for x
    x = 1,180,928,237.65/38,940.96
  6. Step 6: Final answer
    x = 30,326.12

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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.