Home / 31,755.52-43,831.68-19,181.12

Finding the Fourth Proportional to 31,755.52, 43,831.68 and 19,181.12

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Solution

The fourth proportional to 31,755.52, 43,831.68 and 19,181.12 is: 26,475.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,755.52 : 43,831.68 = 19,181.12 : x
  2. Step 2: Convert to fraction form
    31,755.52/43,831.68 = 19,181.12/x
  3. Step 3: Cross multiply
    31,755.52x = 43,831.68 × 19,181.12
  4. Step 4: Simplify right side
    31,755.52x = 840,740,713.88
  5. Step 5: Solve for x
    x = 840,740,713.88/31,755.52
  6. Step 6: Final answer
    x = 26,475.42

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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.