Home / 27,855.64-38,446.45-18,906.03

Finding the Fourth Proportional to 27,855.64, 38,446.45 and 18,906.03

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Solution

The fourth proportional to 27,855.64, 38,446.45 and 18,906.03 is: 26,094.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,855.64 : 38,446.45 = 18,906.03 : x
  2. Step 2: Convert to fraction form
    27,855.64/38,446.45 = 18,906.03/x
  3. Step 3: Cross multiply
    27,855.64x = 38,446.45 × 18,906.03
  4. Step 4: Simplify right side
    27,855.64x = 726,869,689.83
  5. Step 5: Solve for x
    x = 726,869,689.83/27,855.64
  6. Step 6: Final answer
    x = 26,094.16

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.