Home / 19,704.72-27,182.38-13,331.58

Finding the Fourth Proportional to 19,704.72, 27,182.38 and 13,331.58

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Solution

The fourth proportional to 19,704.72, 27,182.38 and 13,331.58 is: 18,390.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,704.72 : 27,182.38 = 13,331.58 : x
  2. Step 2: Convert to fraction form
    19,704.72/27,182.38 = 13,331.58/x
  3. Step 3: Cross multiply
    19,704.72x = 27,182.38 × 13,331.58
  4. Step 4: Simplify right side
    19,704.72x = 362,384,073.56
  5. Step 5: Solve for x
    x = 362,384,073.56/19,704.72
  6. Step 6: Final answer
    x = 18,390.72

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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.