Home / 20,676.48-31,027.68-8,992.32

Finding the Fourth Proportional to 20,676.48, 31,027.68 and 8,992.32

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Solution

The fourth proportional to 20,676.48, 31,027.68 and 8,992.32 is: 13,494.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,676.48 : 31,027.68 = 8,992.32 : x
  2. Step 2: Convert to fraction form
    20,676.48/31,027.68 = 8,992.32/x
  3. Step 3: Cross multiply
    20,676.48x = 31,027.68 × 8,992.32
  4. Step 4: Simplify right side
    20,676.48x = 279,010,827.42
  5. Step 5: Solve for x
    x = 279,010,827.42/20,676.48
  6. Step 6: Final answer
    x = 13,494.12

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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.