Home / 31,535.92-43,518.68-17,388.78

Finding the Fourth Proportional to 31,535.92, 43,518.68 and 17,388.78

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Solution

The fourth proportional to 31,535.92, 43,518.68 and 17,388.78 is: 23,996.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,535.92 : 43,518.68 = 17,388.78 : x
  2. Step 2: Convert to fraction form
    31,535.92/43,518.68 = 17,388.78/x
  3. Step 3: Cross multiply
    31,535.92x = 43,518.68 × 17,388.78
  4. Step 4: Simplify right side
    31,535.92x = 756,736,447.87
  5. Step 5: Solve for x
    x = 756,736,447.87/31,535.92
  6. Step 6: Final answer
    x = 23,996.02

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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.