Home / 28,187.53-42,282.32-9,468.18

Finding the Fourth Proportional to 28,187.53, 42,282.32 and 9,468.18

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Solution

The fourth proportional to 28,187.53, 42,282.32 and 9,468.18 is: 14,202.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,187.53 : 42,282.32 = 9,468.18 : x
  2. Step 2: Convert to fraction form
    28,187.53/42,282.32 = 9,468.18/x
  3. Step 3: Cross multiply
    28,187.53x = 42,282.32 × 9,468.18
  4. Step 4: Simplify right side
    28,187.53x = 400,336,616.58
  5. Step 5: Solve for x
    x = 400,336,616.58/28,187.53
  6. Step 6: Final answer
    x = 14,202.61

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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.