Home / 31,355.76-43,270.83-17,208.57

Finding the Fourth Proportional to 31,355.76, 43,270.83 and 17,208.57

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Solution

The fourth proportional to 31,355.76, 43,270.83 and 17,208.57 is: 23,747.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,355.76 : 43,270.83 = 17,208.57 : x
  2. Step 2: Convert to fraction form
    31,355.76/43,270.83 = 17,208.57/x
  3. Step 3: Cross multiply
    31,355.76x = 43,270.83 × 17,208.57
  4. Step 4: Simplify right side
    31,355.76x = 744,629,107.01
  5. Step 5: Solve for x
    x = 744,629,107.01/31,355.76
  6. Step 6: Final answer
    x = 23,747.76

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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.