Home / 30,219.39-41,703.48-16,791.21

Finding the Fourth Proportional to 30,219.39, 41,703.48 and 16,791.21

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Solution

The fourth proportional to 30,219.39, 41,703.48 and 16,791.21 is: 23,172.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,219.39 : 41,703.48 = 16,791.21 : x
  2. Step 2: Convert to fraction form
    30,219.39/41,703.48 = 16,791.21/x
  3. Step 3: Cross multiply
    30,219.39x = 41,703.48 × 16,791.21
  4. Step 4: Simplify right side
    30,219.39x = 700,251,890.41
  5. Step 5: Solve for x
    x = 700,251,890.41/30,219.39
  6. Step 6: Final answer
    x = 23,172.27

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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.