Home / 20,977.82-31,486.17-10,596.86

Finding the Fourth Proportional to 20,977.82, 31,486.17 and 10,596.86

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Solution

The fourth proportional to 20,977.82, 31,486.17 and 10,596.86 is: 15,905.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,977.82 : 31,486.17 = 10,596.86 : x
  2. Step 2: Convert to fraction form
    20,977.82/31,486.17 = 10,596.86/x
  3. Step 3: Cross multiply
    20,977.82x = 31,486.17 × 10,596.86
  4. Step 4: Simplify right side
    20,977.82x = 333,654,535.43
  5. Step 5: Solve for x
    x = 333,654,535.43/20,977.82
  6. Step 6: Final answer
    x = 15,905.11

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1.5x scale

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.