Home / 20,029.85-30,046.32-5,988.90

Finding the Fourth Proportional to 20,029.85, 30,046.32 and 5,988.90

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Solution

The fourth proportional to 20,029.85, 30,046.32 and 5,988.90 is: 8,983.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,029.85 : 30,046.32 = 5,988.90 : x
  2. Step 2: Convert to fraction form
    20,029.85/30,046.32 = 5,988.90/x
  3. Step 3: Cross multiply
    20,029.85x = 30,046.32 × 5,988.90
  4. Step 4: Simplify right side
    20,029.85x = 179,944,405.85
  5. Step 5: Solve for x
    x = 179,944,405.85/20,029.85
  6. Step 6: Final answer
    x = 8,983.81

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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.