Home / 19,538.88-29,310.78-6,387.72

Finding the Fourth Proportional to 19,538.88, 29,310.78 and 6,387.72

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Solution

The fourth proportional to 19,538.88, 29,310.78 and 6,387.72 is: 9,582.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,538.88 : 29,310.78 = 6,387.72 : x
  2. Step 2: Convert to fraction form
    19,538.88/29,310.78 = 6,387.72/x
  3. Step 3: Cross multiply
    19,538.88x = 29,310.78 × 6,387.72
  4. Step 4: Simplify right side
    19,538.88x = 187,229,055.62
  5. Step 5: Solve for x
    x = 187,229,055.62/19,538.88
  6. Step 6: Final answer
    x = 9,582.38

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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.