Home / 31,551.74-47,258.49-19,213.82

Finding the Fourth Proportional to 31,551.74, 47,258.49 and 19,213.82

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Solution

The fourth proportional to 31,551.74, 47,258.49 and 19,213.82 is: 28,778.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,551.74 : 47,258.49 = 19,213.82 : x
  2. Step 2: Convert to fraction form
    31,551.74/47,258.49 = 19,213.82/x
  3. Step 3: Cross multiply
    31,551.74x = 47,258.49 × 19,213.82
  4. Step 4: Simplify right side
    31,551.74x = 908,016,120.33
  5. Step 5: Solve for x
    x = 908,016,120.33/31,551.74
  6. Step 6: Final answer
    x = 28,778.64

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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.