Home / 31,825.86-43,920.43-17,486.43

Finding the Fourth Proportional to 31,825.86, 43,920.43 and 17,486.43

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Solution

The fourth proportional to 31,825.86, 43,920.43 and 17,486.43 is: 24,131.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,825.86 : 43,920.43 = 17,486.43 : x
  2. Step 2: Convert to fraction form
    31,825.86/43,920.43 = 17,486.43/x
  3. Step 3: Cross multiply
    31,825.86x = 43,920.43 × 17,486.43
  4. Step 4: Simplify right side
    31,825.86x = 768,011,563.40
  5. Step 5: Solve for x
    x = 768,011,563.40/31,825.86
  6. Step 6: Final answer
    x = 24,131.68

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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.