Home / 18,757.09-28,229.56-14,101.21

Finding the Fourth Proportional to 18,757.09, 28,229.56 and 14,101.21

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Solution

The fourth proportional to 18,757.09, 28,229.56 and 14,101.21 is: 21,222.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,757.09 : 28,229.56 = 14,101.21 : x
  2. Step 2: Convert to fraction form
    18,757.09/28,229.56 = 14,101.21/x
  3. Step 3: Cross multiply
    18,757.09x = 28,229.56 × 14,101.21
  4. Step 4: Simplify right side
    18,757.09x = 398,070,953.77
  5. Step 5: Solve for x
    x = 398,070,953.77/18,757.09
  6. Step 6: Final answer
    x = 21,222.43

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.