Home / 31,681.48-47,532.94-11,965.72

Finding the Fourth Proportional to 31,681.48, 47,532.94 and 11,965.72

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Solution

The fourth proportional to 31,681.48, 47,532.94 and 11,965.72 is: 17,952.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,681.48 : 47,532.94 = 11,965.72 : x
  2. Step 2: Convert to fraction form
    31,681.48/47,532.94 = 11,965.72/x
  3. Step 3: Cross multiply
    31,681.48x = 47,532.94 × 11,965.72
  4. Step 4: Simplify right side
    31,681.48x = 568,765,850.82
  5. Step 5: Solve for x
    x = 568,765,850.82/31,681.48
  6. Step 6: Final answer
    x = 17,952.63

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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.