Home / 39,871.05-59,843.63-20,163.75

Finding the Fourth Proportional to 39,871.05, 59,843.63 and 20,163.75

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Solution

The fourth proportional to 39,871.05, 59,843.63 and 20,163.75 is: 30,264.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,871.05 : 59,843.63 = 20,163.75 : x
  2. Step 2: Convert to fraction form
    39,871.05/59,843.63 = 20,163.75/x
  3. Step 3: Cross multiply
    39,871.05x = 59,843.63 × 20,163.75
  4. Step 4: Simplify right side
    39,871.05x = 1,206,671,594.38
  5. Step 5: Solve for x
    x = 1,206,671,594.38/39,871.05
  6. Step 6: Final answer
    x = 30,264.36

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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.