Home / 19,788.72-27,321.18-17,660.58

Finding the Fourth Proportional to 19,788.72, 27,321.18 and 17,660.58

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Solution

The fourth proportional to 19,788.72, 27,321.18 and 17,660.58 is: 24,382.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,788.72 : 27,321.18 = 17,660.58 : x
  2. Step 2: Convert to fraction form
    19,788.72/27,321.18 = 17,660.58/x
  3. Step 3: Cross multiply
    19,788.72x = 27,321.18 × 17,660.58
  4. Step 4: Simplify right side
    19,788.72x = 482,507,885.08
  5. Step 5: Solve for x
    x = 482,507,885.08/19,788.72
  6. Step 6: Final answer
    x = 24,382.98

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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.