Home / 20,754.58-31,130.73-9,067.78

Finding the Fourth Proportional to 20,754.58, 31,130.73 and 9,067.78

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Solution

The fourth proportional to 20,754.58, 31,130.73 and 9,067.78 is: 13,601.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,754.58 : 31,130.73 = 9,067.78 : x
  2. Step 2: Convert to fraction form
    20,754.58/31,130.73 = 9,067.78/x
  3. Step 3: Cross multiply
    20,754.58x = 31,130.73 × 9,067.78
  4. Step 4: Simplify right side
    20,754.58x = 282,286,610.88
  5. Step 5: Solve for x
    x = 282,286,610.88/20,754.58
  6. Step 6: Final answer
    x = 13,601.17

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.