Home / 21,304.75-29,400.71-12,227.70

Finding the Fourth Proportional to 21,304.75, 29,400.71 and 12,227.70

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Solution

The fourth proportional to 21,304.75, 29,400.71 and 12,227.70 is: 16,874.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,304.75 : 29,400.71 = 12,227.70 : x
  2. Step 2: Convert to fraction form
    21,304.75/29,400.71 = 12,227.70/x
  3. Step 3: Cross multiply
    21,304.75x = 29,400.71 × 12,227.70
  4. Step 4: Simplify right side
    21,304.75x = 359,503,061.67
  5. Step 5: Solve for x
    x = 359,503,061.67/21,304.75
  6. Step 6: Final answer
    x = 16,874.31

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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.