Home / 31,286.14-43,174.84-17,139.01

Finding the Fourth Proportional to 31,286.14, 43,174.84 and 17,139.01

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Solution

The fourth proportional to 31,286.14, 43,174.84 and 17,139.01 is: 23,651.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,286.14 : 43,174.84 = 17,139.01 : x
  2. Step 2: Convert to fraction form
    31,286.14/43,174.84 = 17,139.01/x
  3. Step 3: Cross multiply
    31,286.14x = 43,174.84 × 17,139.01
  4. Step 4: Simplify right side
    31,286.14x = 739,974,014.51
  5. Step 5: Solve for x
    x = 739,974,014.51/31,286.14
  6. Step 6: Final answer
    x = 23,651.82

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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.