Home / 27,108.95-40,725.72-19,231.02

Finding the Fourth Proportional to 27,108.95, 40,725.72 and 19,231.02

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Solution

The fourth proportional to 27,108.95, 40,725.72 and 19,231.02 is: 28,890.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,108.95 : 40,725.72 = 19,231.02 : x
  2. Step 2: Convert to fraction form
    27,108.95/40,725.72 = 19,231.02/x
  3. Step 3: Cross multiply
    27,108.95x = 40,725.72 × 19,231.02
  4. Step 4: Simplify right side
    27,108.95x = 783,197,135.83
  5. Step 5: Solve for x
    x = 783,197,135.83/27,108.95
  6. Step 6: Final answer
    x = 28,890.73

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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.