Home / 22,619.45-31,186.15-16,166.80

Finding the Fourth Proportional to 22,619.45, 31,186.15 and 16,166.80

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Solution

The fourth proportional to 22,619.45, 31,186.15 and 16,166.80 is: 22,289.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,619.45 : 31,186.15 = 16,166.80 : x
  2. Step 2: Convert to fraction form
    22,619.45/31,186.15 = 16,166.80/x
  3. Step 3: Cross multiply
    22,619.45x = 31,186.15 × 16,166.80
  4. Step 4: Simplify right side
    22,619.45x = 504,180,249.82
  5. Step 5: Solve for x
    x = 504,180,249.82/22,619.45
  6. Step 6: Final answer
    x = 22,289.68

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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.