Home / 31,668.58-43,695.44-18,919.74

Finding the Fourth Proportional to 31,668.58, 43,695.44 and 18,919.74

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Solution

The fourth proportional to 31,668.58, 43,695.44 and 18,919.74 is: 26,104.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,668.58 : 43,695.44 = 18,919.74 : x
  2. Step 2: Convert to fraction form
    31,668.58/43,695.44 = 18,919.74/x
  3. Step 3: Cross multiply
    31,668.58x = 43,695.44 × 18,919.74
  4. Step 4: Simplify right side
    31,668.58x = 826,706,363.99
  5. Step 5: Solve for x
    x = 826,706,363.99/31,668.58
  6. Step 6: Final answer
    x = 26,104.94

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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.