Home / 31,849.92-43,949.52-18,419.04

Finding the Fourth Proportional to 31,849.92, 43,949.52 and 18,419.04

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Solution

The fourth proportional to 31,849.92, 43,949.52 and 18,419.04 is: 25,416.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,849.92 : 43,949.52 = 18,419.04 : x
  2. Step 2: Convert to fraction form
    31,849.92/43,949.52 = 18,419.04/x
  3. Step 3: Cross multiply
    31,849.92x = 43,949.52 × 18,419.04
  4. Step 4: Simplify right side
    31,849.92x = 809,507,966.86
  5. Step 5: Solve for x
    x = 809,507,966.86/31,849.92
  6. Step 6: Final answer
    x = 25,416.33

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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.