Home / 18,326.88-27,429.48-16,687.20

Finding the Fourth Proportional to 18,326.88, 27,429.48 and 16,687.20

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Solution

The fourth proportional to 18,326.88, 27,429.48 and 16,687.20 is: 24,975.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,326.88 : 27,429.48 = 16,687.20 : x
  2. Step 2: Convert to fraction form
    18,326.88/27,429.48 = 16,687.20/x
  3. Step 3: Cross multiply
    18,326.88x = 27,429.48 × 16,687.20
  4. Step 4: Simplify right side
    18,326.88x = 457,721,218.66
  5. Step 5: Solve for x
    x = 457,721,218.66/18,326.88
  6. Step 6: Final answer
    x = 24,975.40

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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.