Home / 30,110.63-41,553.77-18,171.63

Finding the Fourth Proportional to 30,110.63, 41,553.77 and 18,171.63

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Solution

The fourth proportional to 30,110.63, 41,553.77 and 18,171.63 is: 25,077.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,110.63 : 41,553.77 = 18,171.63 : x
  2. Step 2: Convert to fraction form
    30,110.63/41,553.77 = 18,171.63/x
  3. Step 3: Cross multiply
    30,110.63x = 41,553.77 × 18,171.63
  4. Step 4: Simplify right side
    30,110.63x = 755,099,642.69
  5. Step 5: Solve for x
    x = 755,099,642.69/30,110.63
  6. Step 6: Final answer
    x = 25,077.51

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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.