Home / 31,321.26-46,988.80-9,136.37

Finding the Fourth Proportional to 31,321.26, 46,988.80 and 9,136.37

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Solution

The fourth proportional to 31,321.26, 46,988.80 and 9,136.37 is: 13,706.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,321.26 : 46,988.80 = 9,136.37 : x
  2. Step 2: Convert to fraction form
    31,321.26/46,988.80 = 9,136.37/x
  3. Step 3: Cross multiply
    31,321.26x = 46,988.80 × 9,136.37
  4. Step 4: Simplify right side
    31,321.26x = 429,307,062.66
  5. Step 5: Solve for x
    x = 429,307,062.66/31,321.26
  6. Step 6: Final answer
    x = 13,706.57

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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.