Home / 27,026.81-40,540.21-19,678.04

Finding the Fourth Proportional to 27,026.81, 40,540.21 and 19,678.04

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Solution

The fourth proportional to 27,026.81, 40,540.21 and 19,678.04 is: 29,517.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,026.81 : 40,540.21 = 19,678.04 : x
  2. Step 2: Convert to fraction form
    27,026.81/40,540.21 = 19,678.04/x
  3. Step 3: Cross multiply
    27,026.81x = 40,540.21 × 19,678.04
  4. Step 4: Simplify right side
    27,026.81x = 797,751,671.29
  5. Step 5: Solve for x
    x = 797,751,671.29/27,026.81
  6. Step 6: Final answer
    x = 29,517.05

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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.