Home / 30,426.42-41,988-16,997.86

Finding the Fourth Proportional to 30,426.42, 41,988 and 16,997.86

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Solution

The fourth proportional to 30,426.42, 41,988 and 16,997.86 is: 23,456.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,426.42 : 41,988 = 16,997.86 : x
  2. Step 2: Convert to fraction form
    30,426.42/41,988 = 16,997.86/x
  3. Step 3: Cross multiply
    30,426.42x = 41,988 × 16,997.86
  4. Step 4: Simplify right side
    30,426.42x = 713,706,145.68
  5. Step 5: Solve for x
    x = 713,706,145.68/30,426.42
  6. Step 6: Final answer
    x = 23,456.79

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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.