Home / 30,180.12-41,648.84-18,251.43

Finding the Fourth Proportional to 30,180.12, 41,648.84 and 18,251.43

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Solution

The fourth proportional to 30,180.12, 41,648.84 and 18,251.43 is: 25,187.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,180.12 : 41,648.84 = 18,251.43 : x
  2. Step 2: Convert to fraction form
    30,180.12/41,648.84 = 18,251.43/x
  3. Step 3: Cross multiply
    30,180.12x = 41,648.84 × 18,251.43
  4. Step 4: Simplify right side
    30,180.12x = 760,150,887.84
  5. Step 5: Solve for x
    x = 760,150,887.84/30,180.12
  6. Step 6: Final answer
    x = 25,187.14

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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.