Home / 21,382.38-32,077.62-9,696.51

Finding the Fourth Proportional to 21,382.38, 32,077.62 and 9,696.51

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Solution

The fourth proportional to 21,382.38, 32,077.62 and 9,696.51 is: 14,546.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,382.38 : 32,077.62 = 9,696.51 : x
  2. Step 2: Convert to fraction form
    21,382.38/32,077.62 = 9,696.51/x
  3. Step 3: Cross multiply
    21,382.38x = 32,077.62 × 9,696.51
  4. Step 4: Simplify right side
    21,382.38x = 311,040,963.11
  5. Step 5: Solve for x
    x = 311,040,963.11/21,382.38
  6. Step 6: Final answer
    x = 14,546.60

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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.