Home / 22,311.84-30,791.70-12,881.01

Finding the Fourth Proportional to 22,311.84, 30,791.70 and 12,881.01

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Solution

The fourth proportional to 22,311.84, 30,791.70 and 12,881.01 is: 17,776.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,311.84 : 30,791.70 = 12,881.01 : x
  2. Step 2: Convert to fraction form
    22,311.84/30,791.70 = 12,881.01/x
  3. Step 3: Cross multiply
    22,311.84x = 30,791.70 × 12,881.01
  4. Step 4: Simplify right side
    22,311.84x = 396,628,195.62
  5. Step 5: Solve for x
    x = 396,628,195.62/22,311.84
  6. Step 6: Final answer
    x = 17,776.58

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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.