Home / 20,193.96-27,866.70-12,235.68

Finding the Fourth Proportional to 20,193.96, 27,866.70 and 12,235.68

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Solution

The fourth proportional to 20,193.96, 27,866.70 and 12,235.68 is: 16,884.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,193.96 : 27,866.70 = 12,235.68 : x
  2. Step 2: Convert to fraction form
    20,193.96/27,866.70 = 12,235.68/x
  3. Step 3: Cross multiply
    20,193.96x = 27,866.70 × 12,235.68
  4. Step 4: Simplify right side
    20,193.96x = 340,968,023.86
  5. Step 5: Solve for x
    x = 340,968,023.86/20,193.96
  6. Step 6: Final answer
    x = 16,884.65

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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.