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Finding the Fourth Proportional to 39,268, 58,920.90 and 19,548.28

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Solution

The fourth proportional to 39,268, 58,920.90 and 19,548.28 is: 29,331.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,268 : 58,920.90 = 19,548.28 : x
  2. Step 2: Convert to fraction form
    39,268/58,920.90 = 19,548.28/x
  3. Step 3: Cross multiply
    39,268x = 58,920.90 × 19,548.28
  4. Step 4: Simplify right side
    39,268x = 1,151,802,251.05
  5. Step 5: Solve for x
    x = 1,151,802,251.05/39,268
  6. Step 6: Final answer
    x = 29,331.83

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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.