Home / 28,966.56-43,452.38-8,190.06

Finding the Fourth Proportional to 28,966.56, 43,452.38 and 8,190.06

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Solution

The fourth proportional to 28,966.56, 43,452.38 and 8,190.06 is: 12,285.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,966.56 : 43,452.38 = 8,190.06 : x
  2. Step 2: Convert to fraction form
    28,966.56/43,452.38 = 8,190.06/x
  3. Step 3: Cross multiply
    28,966.56x = 43,452.38 × 8,190.06
  4. Step 4: Simplify right side
    28,966.56x = 355,877,599.34
  5. Step 5: Solve for x
    x = 355,877,599.34/28,966.56
  6. Step 6: Final answer
    x = 12,285.81

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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.