Home / 30,108.12-41,550.66-18,171.24

Finding the Fourth Proportional to 30,108.12, 41,550.66 and 18,171.24

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Solution

The fourth proportional to 30,108.12, 41,550.66 and 18,171.24 is: 25,077.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,108.12 : 41,550.66 = 18,171.24 : x
  2. Step 2: Convert to fraction form
    30,108.12/41,550.66 = 18,171.24/x
  3. Step 3: Cross multiply
    30,108.12x = 41,550.66 × 18,171.24
  4. Step 4: Simplify right side
    30,108.12x = 755,027,015.02
  5. Step 5: Solve for x
    x = 755,027,015.02/30,108.12
  6. Step 6: Final answer
    x = 25,077.19

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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.