Home / 31,235.20-43,102.74-17,087.20

Finding the Fourth Proportional to 31,235.20, 43,102.74 and 17,087.20

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Solution

The fourth proportional to 31,235.20, 43,102.74 and 17,087.20 is: 23,579.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,235.20 : 43,102.74 = 17,087.20 : x
  2. Step 2: Convert to fraction form
    31,235.20/43,102.74 = 17,087.20/x
  3. Step 3: Cross multiply
    31,235.20x = 43,102.74 × 17,087.20
  4. Step 4: Simplify right side
    31,235.20x = 736,505,138.93
  5. Step 5: Solve for x
    x = 736,505,138.93/31,235.20
  6. Step 6: Final answer
    x = 23,579.33

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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.