Home / 19,269.36-28,904.04-5,418.36

Finding the Fourth Proportional to 19,269.36, 28,904.04 and 5,418.36

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Solution

The fourth proportional to 19,269.36, 28,904.04 and 5,418.36 is: 8,127.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,269.36 : 28,904.04 = 5,418.36 : x
  2. Step 2: Convert to fraction form
    19,269.36/28,904.04 = 5,418.36/x
  3. Step 3: Cross multiply
    19,269.36x = 28,904.04 × 5,418.36
  4. Step 4: Simplify right side
    19,269.36x = 156,612,494.17
  5. Step 5: Solve for x
    x = 156,612,494.17/19,269.36
  6. Step 6: Final answer
    x = 8,127.54

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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.