Home / 31,429.84-47,174.39-11,458.64

Finding the Fourth Proportional to 31,429.84, 47,174.39 and 11,458.64

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Solution

The fourth proportional to 31,429.84, 47,174.39 and 11,458.64 is: 17,198.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,429.84 : 47,174.39 = 11,458.64 : x
  2. Step 2: Convert to fraction form
    31,429.84/47,174.39 = 11,458.64/x
  3. Step 3: Cross multiply
    31,429.84x = 47,174.39 × 11,458.64
  4. Step 4: Simplify right side
    31,429.84x = 540,554,412.87
  5. Step 5: Solve for x
    x = 540,554,412.87/31,429.84
  6. Step 6: Final answer
    x = 17,198.77

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.