Home / 30,220.56-41,702.45-16,791.57

Finding the Fourth Proportional to 30,220.56, 41,702.45 and 16,791.57

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Solution

The fourth proportional to 30,220.56, 41,702.45 and 16,791.57 is: 23,171.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,220.56 : 41,702.45 = 16,791.57 : x
  2. Step 2: Convert to fraction form
    30,220.56/41,702.45 = 16,791.57/x
  3. Step 3: Cross multiply
    30,220.56x = 41,702.45 × 16,791.57
  4. Step 4: Simplify right side
    30,220.56x = 700,249,524.39
  5. Step 5: Solve for x
    x = 700,249,524.39/30,220.56
  6. Step 6: Final answer
    x = 23,171.30

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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.