Home / 21,934.45-30,269.45-11,862.89

Finding the Fourth Proportional to 21,934.45, 30,269.45 and 11,862.89

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Solution

The fourth proportional to 21,934.45, 30,269.45 and 11,862.89 is: 16,370.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,934.45 : 30,269.45 = 11,862.89 : x
  2. Step 2: Convert to fraction form
    21,934.45/30,269.45 = 11,862.89/x
  3. Step 3: Cross multiply
    21,934.45x = 30,269.45 × 11,862.89
  4. Step 4: Simplify right side
    21,934.45x = 359,083,201.73
  5. Step 5: Solve for x
    x = 359,083,201.73/21,934.45
  6. Step 6: Final answer
    x = 16,370.74

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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.