Home / 18,985.35-28,480.74-5,838.82

Finding the Fourth Proportional to 18,985.35, 28,480.74 and 5,838.82

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Solution

The fourth proportional to 18,985.35, 28,480.74 and 5,838.82 is: 8,759.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,985.35 : 28,480.74 = 5,838.82 : x
  2. Step 2: Convert to fraction form
    18,985.35/28,480.74 = 5,838.82/x
  3. Step 3: Cross multiply
    18,985.35x = 28,480.74 × 5,838.82
  4. Step 4: Simplify right side
    18,985.35x = 166,293,914.33
  5. Step 5: Solve for x
    x = 166,293,914.33/18,985.35
  6. Step 6: Final answer
    x = 8,759.06

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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.