Home / 31,197.32-43,039.41-22,680.77

Finding the Fourth Proportional to 31,197.32, 43,039.41 and 22,680.77

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Solution

The fourth proportional to 31,197.32, 43,039.41 and 22,680.77 is: 31,290.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,197.32 : 43,039.41 = 22,680.77 : x
  2. Step 2: Convert to fraction form
    31,197.32/43,039.41 = 22,680.77/x
  3. Step 3: Cross multiply
    31,197.32x = 43,039.41 × 22,680.77
  4. Step 4: Simplify right side
    31,197.32x = 976,166,743.95
  5. Step 5: Solve for x
    x = 976,166,743.95/31,197.32
  6. Step 6: Final answer
    x = 31,290.09

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Half scale
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Double scale
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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.