Home / 19,135.31-28,704.62-5,284.31

Finding the Fourth Proportional to 19,135.31, 28,704.62 and 5,284.31

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Solution

The fourth proportional to 19,135.31, 28,704.62 and 5,284.31 is: 7,926.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,135.31 : 28,704.62 = 5,284.31 : x
  2. Step 2: Convert to fraction form
    19,135.31/28,704.62 = 5,284.31/x
  3. Step 3: Cross multiply
    19,135.31x = 28,704.62 × 5,284.31
  4. Step 4: Simplify right side
    19,135.31x = 151,684,195.48
  5. Step 5: Solve for x
    x = 151,684,195.48/19,135.31
  6. Step 6: Final answer
    x = 7,926.93

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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.