Home / 26,898.60-40,353.30-8,179.80

Finding the Fourth Proportional to 26,898.60, 40,353.30 and 8,179.80

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Solution

The fourth proportional to 26,898.60, 40,353.30 and 8,179.80 is: 12,271.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,898.60 : 40,353.30 = 8,179.80 : x
  2. Step 2: Convert to fraction form
    26,898.60/40,353.30 = 8,179.80/x
  3. Step 3: Cross multiply
    26,898.60x = 40,353.30 × 8,179.80
  4. Step 4: Simplify right side
    26,898.60x = 330,081,923.34
  5. Step 5: Solve for x
    x = 330,081,923.34/26,898.60
  6. Step 6: Final answer
    x = 12,271.34

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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.