Home / 55,289.38-82,934.15-16,821.21

Finding the Fourth Proportional to 55,289.38, 82,934.15 and 16,821.21

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Solution

The fourth proportional to 55,289.38, 82,934.15 and 16,821.21 is: 25,231.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,289.38 : 82,934.15 = 16,821.21 : x
  2. Step 2: Convert to fraction form
    55,289.38/82,934.15 = 16,821.21/x
  3. Step 3: Cross multiply
    55,289.38x = 82,934.15 × 16,821.21
  4. Step 4: Simplify right side
    55,289.38x = 1,395,052,753.32
  5. Step 5: Solve for x
    x = 1,395,052,753.32/55,289.38
  6. Step 6: Final answer
    x = 25,231.84

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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.