Home / 28,450.48-42,676.68-8,727.28

Finding the Fourth Proportional to 28,450.48, 42,676.68 and 8,727.28

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Solution

The fourth proportional to 28,450.48, 42,676.68 and 8,727.28 is: 13,091.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,450.48 : 42,676.68 = 8,727.28 : x
  2. Step 2: Convert to fraction form
    28,450.48/42,676.68 = 8,727.28/x
  3. Step 3: Cross multiply
    28,450.48x = 42,676.68 × 8,727.28
  4. Step 4: Simplify right side
    28,450.48x = 372,451,335.83
  5. Step 5: Solve for x
    x = 372,451,335.83/28,450.48
  6. Step 6: Final answer
    x = 13,091.21

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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.