Home / 28,060.82-38,711.71-18,488.43

Finding the Fourth Proportional to 28,060.82, 38,711.71 and 18,488.43

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Solution

The fourth proportional to 28,060.82, 38,711.71 and 18,488.43 is: 25,505.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,060.82 : 38,711.71 = 18,488.43 : x
  2. Step 2: Convert to fraction form
    28,060.82/38,711.71 = 18,488.43/x
  3. Step 3: Cross multiply
    28,060.82x = 38,711.71 × 18,488.43
  4. Step 4: Simplify right side
    28,060.82x = 715,718,694.29
  5. Step 5: Solve for x
    x = 715,718,694.29/28,060.82
  6. Step 6: Final answer
    x = 25,505.98

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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.