Home / 27,379.97-37,784.30-15,443.27

Finding the Fourth Proportional to 27,379.97, 37,784.30 and 15,443.27

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Solution

The fourth proportional to 27,379.97, 37,784.30 and 15,443.27 is: 21,311.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,379.97 : 37,784.30 = 15,443.27 : x
  2. Step 2: Convert to fraction form
    27,379.97/37,784.30 = 15,443.27/x
  3. Step 3: Cross multiply
    27,379.97x = 37,784.30 × 15,443.27
  4. Step 4: Simplify right side
    27,379.97x = 583,513,146.66
  5. Step 5: Solve for x
    x = 583,513,146.66/27,379.97
  6. Step 6: Final answer
    x = 21,311.68

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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.