Home / 27,712.39-38,243.07-15,137.14

Finding the Fourth Proportional to 27,712.39, 38,243.07 and 15,137.14

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Solution

The fourth proportional to 27,712.39, 38,243.07 and 15,137.14 is: 20,889.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,712.39 : 38,243.07 = 15,137.14 : x
  2. Step 2: Convert to fraction form
    27,712.39/38,243.07 = 15,137.14/x
  3. Step 3: Cross multiply
    27,712.39x = 38,243.07 × 15,137.14
  4. Step 4: Simplify right side
    27,712.39x = 578,890,704.62
  5. Step 5: Solve for x
    x = 578,890,704.62/27,712.39
  6. Step 6: Final answer
    x = 20,889.24

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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.