Home / 20,226.10-27,911.37-12,676.50

Finding the Fourth Proportional to 20,226.10, 27,911.37 and 12,676.50

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Solution

The fourth proportional to 20,226.10, 27,911.37 and 12,676.50 is: 17,493.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,226.10 : 27,911.37 = 12,676.50 : x
  2. Step 2: Convert to fraction form
    20,226.10/27,911.37 = 12,676.50/x
  3. Step 3: Cross multiply
    20,226.10x = 27,911.37 × 12,676.50
  4. Step 4: Simplify right side
    20,226.10x = 353,818,481.81
  5. Step 5: Solve for x
    x = 353,818,481.81/20,226.10
  6. Step 6: Final answer
    x = 17,493.17

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.