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Finding the Fourth Proportional to 35,363, 48,824.88 and 21,939.68

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Solution

The fourth proportional to 35,363, 48,824.88 and 21,939.68 is: 30,291.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    35,363 : 48,824.88 = 21,939.68 : x
  2. Step 2: Convert to fraction form
    35,363/48,824.88 = 21,939.68/x
  3. Step 3: Cross multiply
    35,363x = 48,824.88 × 21,939.68
  4. Step 4: Simplify right side
    35,363x = 1,071,202,243.24
  5. Step 5: Solve for x
    x = 1,071,202,243.24/35,363
  6. Step 6: Final answer
    x = 30,291.61

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.