Home / 27,989.52-38,625.30-15,414

Finding the Fourth Proportional to 27,989.52, 38,625.30 and 15,414

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Solution

The fourth proportional to 27,989.52, 38,625.30 and 15,414 is: 21,271.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,989.52 : 38,625.30 = 15,414 : x
  2. Step 2: Convert to fraction form
    27,989.52/38,625.30 = 15,414/x
  3. Step 3: Cross multiply
    27,989.52x = 38,625.30 × 15,414
  4. Step 4: Simplify right side
    27,989.52x = 595,370,374.20
  5. Step 5: Solve for x
    x = 595,370,374.20/27,989.52
  6. Step 6: Final answer
    x = 21,271.19

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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.