Home / 30,993.92-42,758.52-18,416.24

Finding the Fourth Proportional to 30,993.92, 42,758.52 and 18,416.24

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Solution

The fourth proportional to 30,993.92, 42,758.52 and 18,416.24 is: 25,406.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,993.92 : 42,758.52 = 18,416.24 : x
  2. Step 2: Convert to fraction form
    30,993.92/42,758.52 = 18,416.24/x
  3. Step 3: Cross multiply
    30,993.92x = 42,758.52 × 18,416.24
  4. Step 4: Simplify right side
    30,993.92x = 787,451,166.36
  5. Step 5: Solve for x
    x = 787,451,166.36/30,993.92
  6. Step 6: Final answer
    x = 25,406.63

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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.