Home / 30,778.92-42,450.75-22,282.29

Finding the Fourth Proportional to 30,778.92, 42,450.75 and 22,282.29

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Solution

The fourth proportional to 30,778.92, 42,450.75 and 22,282.29 is: 30,732.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,778.92 : 42,450.75 = 22,282.29 : x
  2. Step 2: Convert to fraction form
    30,778.92/42,450.75 = 22,282.29/x
  3. Step 3: Cross multiply
    30,778.92x = 42,450.75 × 22,282.29
  4. Step 4: Simplify right side
    30,778.92x = 945,899,922.22
  5. Step 5: Solve for x
    x = 945,899,922.22/30,778.92
  6. Step 6: Final answer
    x = 30,732.07

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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.