Home / 19,285.15-28,933.17-6,138.55

Finding the Fourth Proportional to 19,285.15, 28,933.17 and 6,138.55

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Solution

The fourth proportional to 19,285.15, 28,933.17 and 6,138.55 is: 9,209.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,285.15 : 28,933.17 = 6,138.55 : x
  2. Step 2: Convert to fraction form
    19,285.15/28,933.17 = 6,138.55/x
  3. Step 3: Cross multiply
    19,285.15x = 28,933.17 × 6,138.55
  4. Step 4: Simplify right side
    19,285.15x = 177,607,710.70
  5. Step 5: Solve for x
    x = 177,607,710.70/19,285.15
  6. Step 6: Final answer
    x = 9,209.56

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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.