Home / 30,189.68-41,663.10-16,761.12

Finding the Fourth Proportional to 30,189.68, 41,663.10 and 16,761.12

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Solution

The fourth proportional to 30,189.68, 41,663.10 and 16,761.12 is: 23,131.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,189.68 : 41,663.10 = 16,761.12 : x
  2. Step 2: Convert to fraction form
    30,189.68/41,663.10 = 16,761.12/x
  3. Step 3: Cross multiply
    30,189.68x = 41,663.10 × 16,761.12
  4. Step 4: Simplify right side
    30,189.68x = 698,320,218.67
  5. Step 5: Solve for x
    x = 698,320,218.67/30,189.68
  6. Step 6: Final answer
    x = 23,131.09

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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.