Home / 20,391.58-30,576.36-6,345.52

Finding the Fourth Proportional to 20,391.58, 30,576.36 and 6,345.52

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Solution

The fourth proportional to 20,391.58, 30,576.36 and 6,345.52 is: 9,514.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,391.58 : 30,576.36 = 6,345.52 : x
  2. Step 2: Convert to fraction form
    20,391.58/30,576.36 = 6,345.52/x
  3. Step 3: Cross multiply
    20,391.58x = 30,576.36 × 6,345.52
  4. Step 4: Simplify right side
    20,391.58x = 194,022,903.91
  5. Step 5: Solve for x
    x = 194,022,903.91/20,391.58
  6. Step 6: Final answer
    x = 9,514.85

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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.