Home / 19,266.25-28,899.38-5,415.25

Finding the Fourth Proportional to 19,266.25, 28,899.38 and 5,415.25

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Solution

The fourth proportional to 19,266.25, 28,899.38 and 5,415.25 is: 8,122.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,266.25 : 28,899.38 = 5,415.25 : x
  2. Step 2: Convert to fraction form
    19,266.25/28,899.38 = 5,415.25/x
  3. Step 3: Cross multiply
    19,266.25x = 28,899.38 × 5,415.25
  4. Step 4: Simplify right side
    19,266.25x = 156,497,367.55
  5. Step 5: Solve for x
    x = 156,497,367.55/19,266.25
  6. Step 6: Final answer
    x = 8,122.88

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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.