Home / 28,441.16-42,661.97-18,642.48

Finding the Fourth Proportional to 28,441.16, 42,661.97 and 18,642.48

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Solution

The fourth proportional to 28,441.16, 42,661.97 and 18,642.48 is: 27,963.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,441.16 : 42,661.97 = 18,642.48 : x
  2. Step 2: Convert to fraction form
    28,441.16/42,661.97 = 18,642.48/x
  3. Step 3: Cross multiply
    28,441.16x = 42,661.97 × 18,642.48
  4. Step 4: Simplify right side
    28,441.16x = 795,324,829.27
  5. Step 5: Solve for x
    x = 795,324,829.27/28,441.16
  6. Step 6: Final answer
    x = 27,963.87

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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.