Home / 30,086.28-41,475.58-21,105.92

Finding the Fourth Proportional to 30,086.28, 41,475.58 and 21,105.92

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Solution

The fourth proportional to 30,086.28, 41,475.58 and 21,105.92 is: 29,095.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,086.28 : 41,475.58 = 21,105.92 : x
  2. Step 2: Convert to fraction form
    30,086.28/41,475.58 = 21,105.92/x
  3. Step 3: Cross multiply
    30,086.28x = 41,475.58 × 21,105.92
  4. Step 4: Simplify right side
    30,086.28x = 875,380,273.43
  5. Step 5: Solve for x
    x = 875,380,273.43/30,086.28
  6. Step 6: Final answer
    x = 29,095.66

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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.