Home / 18,392.67-27,712.94-15,177.78

Finding the Fourth Proportional to 18,392.67, 27,712.94 and 15,177.78

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Solution

The fourth proportional to 18,392.67, 27,712.94 and 15,177.78 is: 22,868.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,392.67 : 27,712.94 = 15,177.78 : x
  2. Step 2: Convert to fraction form
    18,392.67/27,712.94 = 15,177.78/x
  3. Step 3: Cross multiply
    18,392.67x = 27,712.94 × 15,177.78
  4. Step 4: Simplify right side
    18,392.67x = 420,620,830.58
  5. Step 5: Solve for x
    x = 420,620,830.58/18,392.67
  6. Step 6: Final answer
    x = 22,868.94

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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.