Home / 31,677.30-43,710.30-18,249.12

Finding the Fourth Proportional to 31,677.30, 43,710.30 and 18,249.12

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Solution

The fourth proportional to 31,677.30, 43,710.30 and 18,249.12 is: 25,181.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,677.30 : 43,710.30 = 18,249.12 : x
  2. Step 2: Convert to fraction form
    31,677.30/43,710.30 = 18,249.12/x
  3. Step 3: Cross multiply
    31,677.30x = 43,710.30 × 18,249.12
  4. Step 4: Simplify right side
    31,677.30x = 797,674,509.94
  5. Step 5: Solve for x
    x = 797,674,509.94/31,677.30
  6. Step 6: Final answer
    x = 25,181.27

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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.