Home / 27,192.52-40,788.92-12,391.39

Finding the Fourth Proportional to 27,192.52, 40,788.92 and 12,391.39

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Solution

The fourth proportional to 27,192.52, 40,788.92 and 12,391.39 is: 18,587.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,192.52 : 40,788.92 = 12,391.39 : x
  2. Step 2: Convert to fraction form
    27,192.52/40,788.92 = 12,391.39/x
  3. Step 3: Cross multiply
    27,192.52x = 40,788.92 × 12,391.39
  4. Step 4: Simplify right side
    27,192.52x = 505,431,415.40
  5. Step 5: Solve for x
    x = 505,431,415.40/27,192.52
  6. Step 6: Final answer
    x = 18,587.15

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1.5x scale

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.