Home / 30,218.39-41,702.10-16,790.21

Finding the Fourth Proportional to 30,218.39, 41,702.10 and 16,790.21

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Solution

The fourth proportional to 30,218.39, 41,702.10 and 16,790.21 is: 23,170.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,218.39 : 41,702.10 = 16,790.21 : x
  2. Step 2: Convert to fraction form
    30,218.39/41,702.10 = 16,790.21/x
  3. Step 3: Cross multiply
    30,218.39x = 41,702.10 × 16,790.21
  4. Step 4: Simplify right side
    30,218.39x = 700,187,016.44
  5. Step 5: Solve for x
    x = 700,187,016.44/30,218.39
  6. Step 6: Final answer
    x = 23,170.89

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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.