Home / 21,793.12-30,072.48-14,729.04

Finding the Fourth Proportional to 21,793.12, 30,072.48 and 14,729.04

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Solution

The fourth proportional to 21,793.12, 30,072.48 and 14,729.04 is: 20,324.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,793.12 : 30,072.48 = 14,729.04 : x
  2. Step 2: Convert to fraction form
    21,793.12/30,072.48 = 14,729.04/x
  3. Step 3: Cross multiply
    21,793.12x = 30,072.48 × 14,729.04
  4. Step 4: Simplify right side
    21,793.12x = 442,938,760.82
  5. Step 5: Solve for x
    x = 442,938,760.82/21,793.12
  6. Step 6: Final answer
    x = 20,324.71

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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.