Home / 21,934.98-30,270.18-11,863.43

Finding the Fourth Proportional to 21,934.98, 30,270.18 and 11,863.43

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Solution

The fourth proportional to 21,934.98, 30,270.18 and 11,863.43 is: 16,371.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,934.98 : 30,270.18 = 11,863.43 : x
  2. Step 2: Convert to fraction form
    21,934.98/30,270.18 = 11,863.43/x
  3. Step 3: Cross multiply
    21,934.98x = 30,270.18 × 11,863.43
  4. Step 4: Simplify right side
    21,934.98x = 359,108,161.52
  5. Step 5: Solve for x
    x = 359,108,161.52/21,934.98
  6. Step 6: Final answer
    x = 16,371.48

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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.