Home / 28,161.86-42,241.16-9,441.14

Finding the Fourth Proportional to 28,161.86, 42,241.16 and 9,441.14

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Solution

The fourth proportional to 28,161.86, 42,241.16 and 9,441.14 is: 14,161.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,161.86 : 42,241.16 = 9,441.14 : x
  2. Step 2: Convert to fraction form
    28,161.86/42,241.16 = 9,441.14/x
  3. Step 3: Cross multiply
    28,161.86x = 42,241.16 × 9,441.14
  4. Step 4: Simplify right side
    28,161.86x = 398,804,517.72
  5. Step 5: Solve for x
    x = 398,804,517.72/28,161.86
  6. Step 6: Final answer
    x = 14,161.16

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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.