Home / 28,231.92-42,331.68-8,504.64

Finding the Fourth Proportional to 28,231.92, 42,331.68 and 8,504.64

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Solution

The fourth proportional to 28,231.92, 42,331.68 and 8,504.64 is: 12,752.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,231.92 : 42,331.68 = 8,504.64 : x
  2. Step 2: Convert to fraction form
    28,231.92/42,331.68 = 8,504.64/x
  3. Step 3: Cross multiply
    28,231.92x = 42,331.68 × 8,504.64
  4. Step 4: Simplify right side
    28,231.92x = 360,015,699.00
  5. Step 5: Solve for x
    x = 360,015,699.00/28,231.92
  6. Step 6: Final answer
    x = 12,752.08

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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.