Home / 31,450.12-43,400.91-17,840.75

Finding the Fourth Proportional to 31,450.12, 43,400.91 and 17,840.75

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Solution

The fourth proportional to 31,450.12, 43,400.91 and 17,840.75 is: 24,620.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,450.12 : 43,400.91 = 17,840.75 : x
  2. Step 2: Convert to fraction form
    31,450.12/43,400.91 = 17,840.75/x
  3. Step 3: Cross multiply
    31,450.12x = 43,400.91 × 17,840.75
  4. Step 4: Simplify right side
    31,450.12x = 774,304,785.08
  5. Step 5: Solve for x
    x = 774,304,785.08/31,450.12
  6. Step 6: Final answer
    x = 24,620.09

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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.