Home / 28,945.54-43,418.31-8,169.04

Finding the Fourth Proportional to 28,945.54, 43,418.31 and 8,169.04

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Solution

The fourth proportional to 28,945.54, 43,418.31 and 8,169.04 is: 12,253.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,945.54 : 43,418.31 = 8,169.04 : x
  2. Step 2: Convert to fraction form
    28,945.54/43,418.31 = 8,169.04/x
  3. Step 3: Cross multiply
    28,945.54x = 43,418.31 × 8,169.04
  4. Step 4: Simplify right side
    28,945.54x = 354,685,980.71
  5. Step 5: Solve for x
    x = 354,685,980.71/28,945.54
  6. Step 6: Final answer
    x = 12,253.56

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1.5x scale

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.