Home / 47,986.60-71,979.90-16,817.80

Finding the Fourth Proportional to 47,986.60, 71,979.90 and 16,817.80

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Solution

The fourth proportional to 47,986.60, 71,979.90 and 16,817.80 is: 25,226.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    47,986.60 : 71,979.90 = 16,817.80 : x
  2. Step 2: Convert to fraction form
    47,986.60/71,979.90 = 16,817.80/x
  3. Step 3: Cross multiply
    47,986.60x = 71,979.90 × 16,817.80
  4. Step 4: Simplify right side
    47,986.60x = 1,210,543,562.22
  5. Step 5: Solve for x
    x = 1,210,543,562.22/47,986.60
  6. Step 6: Final answer
    x = 25,226.70

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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.