Home / 47,974.80-71,984.40-18,382.80

Finding the Fourth Proportional to 47,974.80, 71,984.40 and 18,382.80

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Solution

The fourth proportional to 47,974.80, 71,984.40 and 18,382.80 is: 27,582.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    47,974.80 : 71,984.40 = 18,382.80 : x
  2. Step 2: Convert to fraction form
    47,974.80/71,984.40 = 18,382.80/x
  3. Step 3: Cross multiply
    47,974.80x = 71,984.40 × 18,382.80
  4. Step 4: Simplify right side
    47,974.80x = 1,323,274,828.32
  5. Step 5: Solve for x
    x = 1,323,274,828.32/47,974.80
  6. Step 6: Final answer
    x = 27,582.71

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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.