Home / 18,932.94-28,377.86-11,521.08

Finding the Fourth Proportional to 18,932.94, 28,377.86 and 11,521.08

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Solution

The fourth proportional to 18,932.94, 28,377.86 and 11,521.08 is: 17,268.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,932.94 : 28,377.86 = 11,521.08 : x
  2. Step 2: Convert to fraction form
    18,932.94/28,377.86 = 11,521.08/x
  3. Step 3: Cross multiply
    18,932.94x = 28,377.86 × 11,521.08
  4. Step 4: Simplify right side
    18,932.94x = 326,943,595.29
  5. Step 5: Solve for x
    x = 326,943,595.29/18,932.94
  6. Step 6: Final answer
    x = 17,268.51

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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.