Home / 30,855.26-42,573.13-18,107.82

Finding the Fourth Proportional to 30,855.26, 42,573.13 and 18,107.82

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Solution

The fourth proportional to 30,855.26, 42,573.13 and 18,107.82 is: 24,984.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,855.26 : 42,573.13 = 18,107.82 : x
  2. Step 2: Convert to fraction form
    30,855.26/42,573.13 = 18,107.82/x
  3. Step 3: Cross multiply
    30,855.26x = 42,573.13 × 18,107.82
  4. Step 4: Simplify right side
    30,855.26x = 770,906,529.61
  5. Step 5: Solve for x
    x = 770,906,529.61/30,855.26
  6. Step 6: Final answer
    x = 24,984.60

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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.