Home / 27,111.48-40,638.04-17,721.96

Finding the Fourth Proportional to 27,111.48, 40,638.04 and 17,721.96

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Solution

The fourth proportional to 27,111.48, 40,638.04 and 17,721.96 is: 26,563.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,111.48 : 40,638.04 = 17,721.96 : x
  2. Step 2: Convert to fraction form
    27,111.48/40,638.04 = 17,721.96/x
  3. Step 3: Cross multiply
    27,111.48x = 40,638.04 × 17,721.96
  4. Step 4: Simplify right side
    27,111.48x = 720,185,719.36
  5. Step 5: Solve for x
    x = 720,185,719.36/27,111.48
  6. Step 6: Final answer
    x = 26,563.87

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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.