Home / 27,111.20-40,634.00-12,305.21

Finding the Fourth Proportional to 27,111.20, 40,634.00 and 12,305.21

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Solution

The fourth proportional to 27,111.20, 40,634.00 and 12,305.21 is: 18,442.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,111.20 : 40,634.00 = 12,305.21 : x
  2. Step 2: Convert to fraction form
    27,111.20/40,634.00 = 12,305.21/x
  3. Step 3: Cross multiply
    27,111.20x = 40,634.00 × 12,305.21
  4. Step 4: Simplify right side
    27,111.20x = 500,009,841.61
  5. Step 5: Solve for x
    x = 500,009,841.61/27,111.20
  6. Step 6: Final answer
    x = 18,442.93

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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.