Home / 31,736.12-43,800.18-18,308.12

Finding the Fourth Proportional to 31,736.12, 43,800.18 and 18,308.12

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Solution

The fourth proportional to 31,736.12, 43,800.18 and 18,308.12 is: 25,267.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,736.12 : 43,800.18 = 18,308.12 : x
  2. Step 2: Convert to fraction form
    31,736.12/43,800.18 = 18,308.12/x
  3. Step 3: Cross multiply
    31,736.12x = 43,800.18 × 18,308.12
  4. Step 4: Simplify right side
    31,736.12x = 801,898,951.46
  5. Step 5: Solve for x
    x = 801,898,951.46/31,736.12
  6. Step 6: Final answer
    x = 25,267.71

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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.