Home / 19,881.84-29,815.38-5,838

Finding the Fourth Proportional to 19,881.84, 29,815.38 and 5,838

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Solution

The fourth proportional to 19,881.84, 29,815.38 and 5,838 is: 8,754.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,881.84 : 29,815.38 = 5,838 : x
  2. Step 2: Convert to fraction form
    19,881.84/29,815.38 = 5,838/x
  3. Step 3: Cross multiply
    19,881.84x = 29,815.38 × 5,838
  4. Step 4: Simplify right side
    19,881.84x = 174,062,188.44
  5. Step 5: Solve for x
    x = 174,062,188.44/19,881.84
  6. Step 6: Final answer
    x = 8,754.83

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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.