Home / 22,080.75-30,471.45-12,144.75

Finding the Fourth Proportional to 22,080.75, 30,471.45 and 12,144.75

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Solution

The fourth proportional to 22,080.75, 30,471.45 and 12,144.75 is: 16,759.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,080.75 : 30,471.45 = 12,144.75 : x
  2. Step 2: Convert to fraction form
    22,080.75/30,471.45 = 12,144.75/x
  3. Step 3: Cross multiply
    22,080.75x = 30,471.45 × 12,144.75
  4. Step 4: Simplify right side
    22,080.75x = 370,068,142.39
  5. Step 5: Solve for x
    x = 370,068,142.39/22,080.75
  6. Step 6: Final answer
    x = 16,759.76

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Find fourth proportional to 11,040.38, 15,235.73 and 6,072.38
Half scale
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Double scale
Find fourth proportional to 22,081.75, 30,472.83 and 12,145.75
Similar ratio
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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.