Home / 39,983.94-59,958.36-21,259.44

Finding the Fourth Proportional to 39,983.94, 59,958.36 and 21,259.44

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Solution

The fourth proportional to 39,983.94, 59,958.36 and 21,259.44 is: 31,879.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,983.94 : 59,958.36 = 21,259.44 : x
  2. Step 2: Convert to fraction form
    39,983.94/59,958.36 = 21,259.44/x
  3. Step 3: Cross multiply
    39,983.94x = 59,958.36 × 21,259.44
  4. Step 4: Simplify right side
    39,983.94x = 1,274,681,156.92
  5. Step 5: Solve for x
    x = 1,274,681,156.92/39,983.94
  6. Step 6: Final answer
    x = 31,879.83

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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.