Home / 30,393.88-41,962.82-20,849.76

Finding the Fourth Proportional to 30,393.88, 41,962.82 and 20,849.76

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Solution

The fourth proportional to 30,393.88, 41,962.82 and 20,849.76 is: 28,785.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,393.88 : 41,962.82 = 20,849.76 : x
  2. Step 2: Convert to fraction form
    30,393.88/41,962.82 = 20,849.76/x
  3. Step 3: Cross multiply
    30,393.88x = 41,962.82 × 20,849.76
  4. Step 4: Simplify right side
    30,393.88x = 874,914,725.92
  5. Step 5: Solve for x
    x = 874,914,725.92/30,393.88
  6. Step 6: Final answer
    x = 28,785.88

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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.