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Finding the Fourth Proportional to 18,378.44, 27,542.91 and 10,045.94

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Solution

The fourth proportional to 18,378.44, 27,542.91 and 10,045.94 is: 15,055.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,378.44 : 27,542.91 = 10,045.94 : x
  2. Step 2: Convert to fraction form
    18,378.44/27,542.91 = 10,045.94/x
  3. Step 3: Cross multiply
    18,378.44x = 27,542.91 × 10,045.94
  4. Step 4: Simplify right side
    18,378.44x = 276,694,421.29
  5. Step 5: Solve for x
    x = 276,694,421.29/18,378.44
  6. Step 6: Final answer
    x = 15,055.38

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1.5x scale

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.