Home / 28,441.96-42,669-10,911.64

Finding the Fourth Proportional to 28,441.96, 42,669 and 10,911.64

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Solution

The fourth proportional to 28,441.96, 42,669 and 10,911.64 is: 16,369.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,441.96 : 42,669 = 10,911.64 : x
  2. Step 2: Convert to fraction form
    28,441.96/42,669 = 10,911.64/x
  3. Step 3: Cross multiply
    28,441.96x = 42,669 × 10,911.64
  4. Step 4: Simplify right side
    28,441.96x = 465,588,767.16
  5. Step 5: Solve for x
    x = 465,588,767.16/28,441.96
  6. Step 6: Final answer
    x = 16,369.78

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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.