Home / 30,191.20-41,663.48-16,761.94

Finding the Fourth Proportional to 30,191.20, 41,663.48 and 16,761.94

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Solution

The fourth proportional to 30,191.20, 41,663.48 and 16,761.94 is: 23,131.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,191.20 : 41,663.48 = 16,761.94 : x
  2. Step 2: Convert to fraction form
    30,191.20/41,663.48 = 16,761.94/x
  3. Step 3: Cross multiply
    30,191.20x = 41,663.48 × 16,761.94
  4. Step 4: Simplify right side
    30,191.20x = 698,360,751.95
  5. Step 5: Solve for x
    x = 698,360,751.95/30,191.20
  6. Step 6: Final answer
    x = 23,131.27

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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.