Home / 31,121.82-46,656.81-11,396.70

Finding the Fourth Proportional to 31,121.82, 46,656.81 and 11,396.70

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Solution

The fourth proportional to 31,121.82, 46,656.81 and 11,396.70 is: 17,085.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,121.82 : 46,656.81 = 11,396.70 : x
  2. Step 2: Convert to fraction form
    31,121.82/46,656.81 = 11,396.70/x
  3. Step 3: Cross multiply
    31,121.82x = 46,656.81 × 11,396.70
  4. Step 4: Simplify right side
    31,121.82x = 531,733,666.53
  5. Step 5: Solve for x
    x = 531,733,666.53/31,121.82
  6. Step 6: Final answer
    x = 17,085.56

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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.