Home / 38,505.21-57,759.87-12,212.00

Finding the Fourth Proportional to 38,505.21, 57,759.87 and 12,212.00

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Solution

The fourth proportional to 38,505.21, 57,759.87 and 12,212.00 is: 18,318.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,505.21 : 57,759.87 = 12,212.00 : x
  2. Step 2: Convert to fraction form
    38,505.21/57,759.87 = 12,212.00/x
  3. Step 3: Cross multiply
    38,505.21x = 57,759.87 × 12,212.00
  4. Step 4: Simplify right side
    38,505.21x = 705,363,506.04
  5. Step 5: Solve for x
    x = 705,363,506.04/38,505.21
  6. Step 6: Final answer
    x = 18,318.65

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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.