Home / 34,906.40-48,171.28-18,991.28

Finding the Fourth Proportional to 34,906.40, 48,171.28 and 18,991.28

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Solution

The fourth proportional to 34,906.40, 48,171.28 and 18,991.28 is: 26,208.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    34,906.40 : 48,171.28 = 18,991.28 : x
  2. Step 2: Convert to fraction form
    34,906.40/48,171.28 = 18,991.28/x
  3. Step 3: Cross multiply
    34,906.40x = 48,171.28 × 18,991.28
  4. Step 4: Simplify right side
    34,906.40x = 914,834,266.44
  5. Step 5: Solve for x
    x = 914,834,266.44/34,906.40
  6. Step 6: Final answer
    x = 26,208.21

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.