Home / 28,317.84-42,481.88-11,668.61

Finding the Fourth Proportional to 28,317.84, 42,481.88 and 11,668.61

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Solution

The fourth proportional to 28,317.84, 42,481.88 and 11,668.61 is: 17,505.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,317.84 : 42,481.88 = 11,668.61 : x
  2. Step 2: Convert to fraction form
    28,317.84/42,481.88 = 11,668.61/x
  3. Step 3: Cross multiply
    28,317.84x = 42,481.88 × 11,668.61
  4. Step 4: Simplify right side
    28,317.84x = 495,704,219.03
  5. Step 5: Solve for x
    x = 495,704,219.03/28,317.84
  6. Step 6: Final answer
    x = 17,505.02

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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.