Home / 28,114.62-42,135.54-11,455.26

Finding the Fourth Proportional to 28,114.62, 42,135.54 and 11,455.26

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Solution

The fourth proportional to 28,114.62, 42,135.54 and 11,455.26 is: 17,168.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,114.62 : 42,135.54 = 11,455.26 : x
  2. Step 2: Convert to fraction form
    28,114.62/42,135.54 = 11,455.26/x
  3. Step 3: Cross multiply
    28,114.62x = 42,135.54 × 11,455.26
  4. Step 4: Simplify right side
    28,114.62x = 482,673,565.94
  5. Step 5: Solve for x
    x = 482,673,565.94/28,114.62
  6. Step 6: Final answer
    x = 17,168.06

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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.