Home / 31,396.74-47,113.47-11,689.26

Finding the Fourth Proportional to 31,396.74, 47,113.47 and 11,689.26

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Solution

The fourth proportional to 31,396.74, 47,113.47 and 11,689.26 is: 17,540.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,396.74 : 47,113.47 = 11,689.26 : x
  2. Step 2: Convert to fraction form
    31,396.74/47,113.47 = 11,689.26/x
  3. Step 3: Cross multiply
    31,396.74x = 47,113.47 × 11,689.26
  4. Step 4: Simplify right side
    31,396.74x = 550,721,600.33
  5. Step 5: Solve for x
    x = 550,721,600.33/31,396.74
  6. Step 6: Final answer
    x = 17,540.73

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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.