Home / 22,550.44-31,119.30-12,478.84

Finding the Fourth Proportional to 22,550.44, 31,119.30 and 12,478.84

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Solution

The fourth proportional to 22,550.44, 31,119.30 and 12,478.84 is: 17,220.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,550.44 : 31,119.30 = 12,478.84 : x
  2. Step 2: Convert to fraction form
    22,550.44/31,119.30 = 12,478.84/x
  3. Step 3: Cross multiply
    22,550.44x = 31,119.30 × 12,478.84
  4. Step 4: Simplify right side
    22,550.44x = 388,332,765.61
  5. Step 5: Solve for x
    x = 388,332,765.61/22,550.44
  6. Step 6: Final answer
    x = 17,220.63

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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.