Home / 31,523.22-43,508.48-18,103.55

Finding the Fourth Proportional to 31,523.22, 43,508.48 and 18,103.55

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Solution

The fourth proportional to 31,523.22, 43,508.48 and 18,103.55 is: 24,986.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,523.22 : 43,508.48 = 18,103.55 : x
  2. Step 2: Convert to fraction form
    31,523.22/43,508.48 = 18,103.55/x
  3. Step 3: Cross multiply
    31,523.22x = 43,508.48 × 18,103.55
  4. Step 4: Simplify right side
    31,523.22x = 787,657,635.04
  5. Step 5: Solve for x
    x = 787,657,635.04/31,523.22
  6. Step 6: Final answer
    x = 24,986.59

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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.