Home / 27,989.61-38,623.91-15,414.36

Finding the Fourth Proportional to 27,989.61, 38,623.91 and 15,414.36

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Solution

The fourth proportional to 27,989.61, 38,623.91 and 15,414.36 is: 21,270.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,989.61 : 38,623.91 = 15,414.36 : x
  2. Step 2: Convert to fraction form
    27,989.61/38,623.91 = 15,414.36/x
  3. Step 3: Cross multiply
    27,989.61x = 38,623.91 × 15,414.36
  4. Step 4: Simplify right side
    27,989.61x = 595,362,891.88
  5. Step 5: Solve for x
    x = 595,362,891.88/27,989.61
  6. Step 6: Final answer
    x = 21,270.85

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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.