Home / 19,992.72-30,002.48-8,305.92

Finding the Fourth Proportional to 19,992.72, 30,002.48 and 8,305.92

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Solution

The fourth proportional to 19,992.72, 30,002.48 and 8,305.92 is: 12,464.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,992.72 : 30,002.48 = 8,305.92 : x
  2. Step 2: Convert to fraction form
    19,992.72/30,002.48 = 8,305.92/x
  3. Step 3: Cross multiply
    19,992.72x = 30,002.48 × 8,305.92
  4. Step 4: Simplify right side
    19,992.72x = 249,198,198.68
  5. Step 5: Solve for x
    x = 249,198,198.68/19,992.72
  6. Step 6: Final answer
    x = 12,464.45

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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.