Home / 31,678.08-43,714.26-18,249.72

Finding the Fourth Proportional to 31,678.08, 43,714.26 and 18,249.72

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Solution

The fourth proportional to 31,678.08, 43,714.26 and 18,249.72 is: 25,183.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,678.08 : 43,714.26 = 18,249.72 : x
  2. Step 2: Convert to fraction form
    31,678.08/43,714.26 = 18,249.72/x
  3. Step 3: Cross multiply
    31,678.08x = 43,714.26 × 18,249.72
  4. Step 4: Simplify right side
    31,678.08x = 797,773,005.01
  5. Step 5: Solve for x
    x = 797,773,005.01/31,678.08
  6. Step 6: Final answer
    x = 25,183.75

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.