Home / 21,204.38-31,802.96-5,623.58

Finding the Fourth Proportional to 21,204.38, 31,802.96 and 5,623.58

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Solution

The fourth proportional to 21,204.38, 31,802.96 and 5,623.58 is: 8,434.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,204.38 : 31,802.96 = 5,623.58 : x
  2. Step 2: Convert to fraction form
    21,204.38/31,802.96 = 5,623.58/x
  3. Step 3: Cross multiply
    21,204.38x = 31,802.96 × 5,623.58
  4. Step 4: Simplify right side
    21,204.38x = 178,846,489.80
  5. Step 5: Solve for x
    x = 178,846,489.80/21,204.38
  6. Step 6: Final answer
    x = 8,434.41

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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.