Home / 27,712.69-38,243.61-15,137.44

Finding the Fourth Proportional to 27,712.69, 38,243.61 and 15,137.44

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Solution

The fourth proportional to 27,712.69, 38,243.61 and 15,137.44 is: 20,889.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,712.69 : 38,243.61 = 15,137.44 : x
  2. Step 2: Convert to fraction form
    27,712.69/38,243.61 = 15,137.44/x
  3. Step 3: Cross multiply
    27,712.69x = 38,243.61 × 15,137.44
  4. Step 4: Simplify right side
    27,712.69x = 578,910,256.15
  5. Step 5: Solve for x
    x = 578,910,256.15/27,712.69
  6. Step 6: Final answer
    x = 20,889.72

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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.