Home / 20,113.86-30,161.43-11,796.42

Finding the Fourth Proportional to 20,113.86, 30,161.43 and 11,796.42

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Solution

The fourth proportional to 20,113.86, 30,161.43 and 11,796.42 is: 17,689.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,113.86 : 30,161.43 = 11,796.42 : x
  2. Step 2: Convert to fraction form
    20,113.86/30,161.43 = 11,796.42/x
  3. Step 3: Cross multiply
    20,113.86x = 30,161.43 × 11,796.42
  4. Step 4: Simplify right side
    20,113.86x = 355,796,896.08
  5. Step 5: Solve for x
    x = 355,796,896.08/20,113.86
  6. Step 6: Final answer
    x = 17,689.14

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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.