Home / 20,029.52-30,042.60-6,178.64

Finding the Fourth Proportional to 20,029.52, 30,042.60 and 6,178.64

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Solution

The fourth proportional to 20,029.52, 30,042.60 and 6,178.64 is: 9,267.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,029.52 : 30,042.60 = 6,178.64 : x
  2. Step 2: Convert to fraction form
    20,029.52/30,042.60 = 6,178.64/x
  3. Step 3: Cross multiply
    20,029.52x = 30,042.60 × 6,178.64
  4. Step 4: Simplify right side
    20,029.52x = 185,622,410.06
  5. Step 5: Solve for x
    x = 185,622,410.06/20,029.52
  6. Step 6: Final answer
    x = 9,267.44

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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.