Home / 30,351.64-41,891.99-19,722.82

Finding the Fourth Proportional to 30,351.64, 41,891.99 and 19,722.82

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Solution

The fourth proportional to 30,351.64, 41,891.99 and 19,722.82 is: 27,221.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,351.64 : 41,891.99 = 19,722.82 : x
  2. Step 2: Convert to fraction form
    30,351.64/41,891.99 = 19,722.82/x
  3. Step 3: Cross multiply
    30,351.64x = 41,891.99 × 19,722.82
  4. Step 4: Simplify right side
    30,351.64x = 826,228,079.60
  5. Step 5: Solve for x
    x = 826,228,079.60/30,351.64
  6. Step 6: Final answer
    x = 27,221.86

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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.