Home / 39,878.84-59,873.61-20,171.27

Finding the Fourth Proportional to 39,878.84, 59,873.61 and 20,171.27

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Solution

The fourth proportional to 39,878.84, 59,873.61 and 20,171.27 is: 30,284.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,878.84 : 59,873.61 = 20,171.27 : x
  2. Step 2: Convert to fraction form
    39,878.84/59,873.61 = 20,171.27/x
  3. Step 3: Cross multiply
    39,878.84x = 59,873.61 × 20,171.27
  4. Step 4: Simplify right side
    39,878.84x = 1,207,726,753.18
  5. Step 5: Solve for x
    x = 1,207,726,753.18/39,878.84
  6. Step 6: Final answer
    x = 30,284.90

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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.