Home / 27,855.20-38,427.14-18,310.97

Finding the Fourth Proportional to 27,855.20, 38,427.14 and 18,310.97

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Solution

The fourth proportional to 27,855.20, 38,427.14 and 18,310.97 is: 25,260.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,855.20 : 38,427.14 = 18,310.97 : x
  2. Step 2: Convert to fraction form
    27,855.20/38,427.14 = 18,310.97/x
  3. Step 3: Cross multiply
    27,855.20x = 38,427.14 × 18,310.97
  4. Step 4: Simplify right side
    27,855.20x = 703,638,116.17
  5. Step 5: Solve for x
    x = 703,638,116.17/27,855.20
  6. Step 6: Final answer
    x = 25,260.57

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1.5x scale

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.