Home / 31,451.76-43,403.16-17,842.38

Finding the Fourth Proportional to 31,451.76, 43,403.16 and 17,842.38

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Solution

The fourth proportional to 31,451.76, 43,403.16 and 17,842.38 is: 24,622.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,451.76 : 43,403.16 = 17,842.38 : x
  2. Step 2: Convert to fraction form
    31,451.76/43,403.16 = 17,842.38/x
  3. Step 3: Cross multiply
    31,451.76x = 43,403.16 × 17,842.38
  4. Step 4: Simplify right side
    31,451.76x = 774,415,673.92
  5. Step 5: Solve for x
    x = 774,415,673.92/31,451.76
  6. Step 6: Final answer
    x = 24,622.33

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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.