Home / 55,022.92-82,517.70-21,282.90

Finding the Fourth Proportional to 55,022.92, 82,517.70 and 21,282.90

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Solution

The fourth proportional to 55,022.92, 82,517.70 and 21,282.90 is: 31,917.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,022.92 : 82,517.70 = 21,282.90 : x
  2. Step 2: Convert to fraction form
    55,022.92/82,517.70 = 21,282.90/x
  3. Step 3: Cross multiply
    55,022.92x = 82,517.70 × 21,282.90
  4. Step 4: Simplify right side
    55,022.92x = 1,756,215,957.33
  5. Step 5: Solve for x
    x = 1,756,215,957.33/55,022.92
  6. Step 6: Final answer
    x = 31,917.90

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.