Home / 31,818.54-43,895.19-20,483.97

Finding the Fourth Proportional to 31,818.54, 43,895.19 and 20,483.97

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Solution

The fourth proportional to 31,818.54, 43,895.19 and 20,483.97 is: 28,258.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,818.54 : 43,895.19 = 20,483.97 : x
  2. Step 2: Convert to fraction form
    31,818.54/43,895.19 = 20,483.97/x
  3. Step 3: Cross multiply
    31,818.54x = 43,895.19 × 20,483.97
  4. Step 4: Simplify right side
    31,818.54x = 899,147,755.10
  5. Step 5: Solve for x
    x = 899,147,755.10/31,818.54
  6. Step 6: Final answer
    x = 28,258.61

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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.