Home / 19,811.22-29,721.43-5,772.74

Finding the Fourth Proportional to 19,811.22, 29,721.43 and 5,772.74

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Solution

The fourth proportional to 19,811.22, 29,721.43 and 5,772.74 is: 8,660.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,811.22 : 29,721.43 = 5,772.74 : x
  2. Step 2: Convert to fraction form
    19,811.22/29,721.43 = 5,772.74/x
  3. Step 3: Cross multiply
    19,811.22x = 29,721.43 × 5,772.74
  4. Step 4: Simplify right side
    19,811.22x = 171,573,946.43
  5. Step 5: Solve for x
    x = 171,573,946.43/19,811.22
  6. Step 6: Final answer
    x = 8,660.44

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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.